diff --git a/src/base_media_base.h b/src/base_media_base.h
index 93bdfabb42..ae678adb2e 100644
--- a/src/base_media_base.h
+++ b/src/base_media_base.h
@@ -130,11 +130,9 @@ struct BaseSet {
 	 */
 	std::string GetListLabel() const
 	{
-		if (this->GetNumInvalid() == 0) return this->name;
+		if (this->GetNumInvalid() == 0) return GetString(STR_JUST_RAW_STRING, this->name);
 
-		SetDParamStr(0, this->name);
-		SetDParam(1, this->GetNumInvalid());
-		return GetString(STR_BASESET_STATUS);
+		return GetString(STR_BASESET_STATUS, this->name, this->GetNumInvalid());
 	}
 
 	/**
diff --git a/src/build_vehicle_gui.cpp b/src/build_vehicle_gui.cpp
index eda475e39f..25f0da948a 100644
--- a/src/build_vehicle_gui.cpp
+++ b/src/build_vehicle_gui.cpp
@@ -146,14 +146,12 @@ static bool EngineNameSorter(const GUIEngineListItem &a, const GUIEngineListItem
 
 	if (a.engine_id != _last_engine[0]) {
 		_last_engine[0] = a.engine_id;
-		SetDParam(0, PackEngineNameDParam(a.engine_id, EngineNameContext::PurchaseList));
-		last_name[0] = GetString(STR_ENGINE_NAME);
+		last_name[0] = GetString(STR_ENGINE_NAME, PackEngineNameDParam(a.engine_id, EngineNameContext::PurchaseList));
 	}
 
 	if (b.engine_id != _last_engine[1]) {
 		_last_engine[1] = b.engine_id;
-		SetDParam(0, PackEngineNameDParam(b.engine_id, EngineNameContext::PurchaseList));
-		last_name[1] = GetString(STR_ENGINE_NAME);
+		last_name[1] = GetString(STR_ENGINE_NAME, PackEngineNameDParam(b.engine_id, EngineNameContext::PurchaseList));
 	}
 
 	int r = StrNaturalCompare(last_name[0], last_name[1]); // Sort by name (natural sorting).
@@ -1369,8 +1367,7 @@ struct BuildVehicleWindow : Window {
 
 		/* Filter engine name */
 		this->string_filter.ResetState();
-		SetDParam(0, PackEngineNameDParam(e->index, EngineNameContext::PurchaseList));
-		this->string_filter.AddLine(GetString(STR_ENGINE_NAME));
+		this->string_filter.AddLine(GetString(STR_ENGINE_NAME, PackEngineNameDParam(e->index, EngineNameContext::PurchaseList)));
 
 		/* Filter NewGRF extra text */
 		auto text = GetNewGRFAdditionalText(e->index);
diff --git a/src/cargotype.cpp b/src/cargotype.cpp
index c0def89dc4..72364e361b 100644
--- a/src/cargotype.cpp
+++ b/src/cargotype.cpp
@@ -284,9 +284,7 @@ std::optional<std::string> BuildCargoAcceptanceString(const CargoArray &acceptan
 
 			/* If the accepted value is less than 8, show it in 1/8:ths */
 			if (acceptance[cargo_type] < 8) {
-				SetDParam(0, acceptance[cargo_type]);
-				SetDParam(1, cs->name);
-				line << GetString(STR_LAND_AREA_INFORMATION_CARGO_EIGHTS);
+				line << GetString(STR_LAND_AREA_INFORMATION_CARGO_EIGHTS, acceptance[cargo_type], cs->name);
 			} else {
 				line << GetString(cs->name);
 			}
diff --git a/src/company_cmd.cpp b/src/company_cmd.cpp
index 239fba8014..9cfcacc93a 100644
--- a/src/company_cmd.cpp
+++ b/src/company_cmd.cpp
@@ -415,8 +415,7 @@ verify_name:;
 			if (cc->name_1 == str && cc->name_2 == strp) goto bad_town_name;
 		}
 
-		SetDParam(0, strp);
-		name = GetString(str);
+		name = GetString(str, strp);
 		if (Utf8StringLength(name) >= MAX_LENGTH_COMPANY_NAME_CHARS) goto bad_town_name;
 
 set_name:;
@@ -540,14 +539,12 @@ restart:;
 
 		/* Reserve space for extra unicode character. We need to do this to be able
 		 * to detect too long president name. */
-		SetDParam(0, c->index);
-		std::string name = GetString(STR_PRESIDENT_NAME);
+		std::string name = GetString(STR_PRESIDENT_NAME, c->index);
 		if (Utf8StringLength(name) >= MAX_LENGTH_PRESIDENT_NAME_CHARS) continue;
 
 		for (const Company *cc : Company::Iterate()) {
 			if (c != cc) {
-				SetDParam(0, cc->index);
-				std::string other_name = GetString(STR_PRESIDENT_NAME);
+				std::string other_name = GetString(STR_PRESIDENT_NAME, cc->index);
 				if (name == other_name) goto restart;
 			}
 		}
@@ -819,17 +816,14 @@ static IntervalTimer<TimerGameEconomy> _economy_companies_yearly({TimerGameEcono
  */
 CompanyNewsInformation::CompanyNewsInformation(const Company *c, const Company *other)
 {
-	SetDParam(0, c->index);
-	this->company_name = GetString(STR_COMPANY_NAME);
+	this->company_name = GetString(STR_COMPANY_NAME, c->index);
 
 	if (other != nullptr) {
-		SetDParam(0, other->index);
-		this->other_company_name = GetString(STR_COMPANY_NAME);
+		this->other_company_name = GetString(STR_COMPANY_NAME, other->index);
 		c = other;
 	}
 
-	SetDParam(0, c->index);
-	this->president_name = GetString(STR_PRESIDENT_NAME_MANAGER);
+	this->president_name = GetString(STR_PRESIDENT_NAME_MANAGER, c->index);
 
 	this->colour = c->colour;
 	this->face = c->face;
@@ -1187,8 +1181,7 @@ CommandCost CmdRenameCompany(DoCommandFlags flags, const std::string &text)
 		MarkWholeScreenDirty();
 		CompanyAdminUpdate(c);
 
-		SetDParam(0, c->index);
-		std::string new_name = GetString(STR_COMPANY_NAME);
+		std::string new_name = GetString(STR_COMPANY_NAME, c->index);
 		AI::BroadcastNewEvent(new ScriptEventCompanyRenamed(c->index, new_name));
 		Game::NewEvent(new ScriptEventCompanyRenamed(c->index, new_name));
 	}
@@ -1242,8 +1235,7 @@ CommandCost CmdRenamePresident(DoCommandFlags flags, const std::string &text)
 		MarkWholeScreenDirty();
 		CompanyAdminUpdate(c);
 
-		SetDParam(0, c->index);
-		std::string new_name = GetString(STR_PRESIDENT_NAME);
+		std::string new_name = GetString(STR_PRESIDENT_NAME, c->index);
 		AI::BroadcastNewEvent(new ScriptEventPresidentRenamed(c->index, new_name));
 		Game::NewEvent(new ScriptEventPresidentRenamed(c->index, new_name));
 	}
@@ -1323,11 +1315,8 @@ CommandCost CmdGiveMoney(DoCommandFlags flags, Money money, CompanyID dest_compa
 		cur_company.Restore();
 
 		if (_networking) {
-			SetDParam(0, dest_company);
-			std::string dest_company_name = GetString(STR_COMPANY_NAME);
-
-			SetDParam(0, _current_company);
-			std::string from_company_name = GetString(STR_COMPANY_NAME);
+			std::string dest_company_name = GetString(STR_COMPANY_NAME, dest_company);
+			std::string from_company_name = GetString(STR_COMPANY_NAME, _current_company);
 
 			NetworkTextMessage(NETWORK_ACTION_GIVE_MONEY, GetDrawStringCompanyColour(_current_company), false, from_company_name, dest_company_name, amount.GetCost());
 		}
diff --git a/src/console_cmds.cpp b/src/console_cmds.cpp
index 19449b17e1..97b7feabe8 100644
--- a/src/console_cmds.cpp
+++ b/src/console_cmds.cpp
@@ -1870,8 +1870,7 @@ DEF_CONSOLE_CMD(ConCompanies)
 
 	for (const Company *c : Company::Iterate()) {
 		/* Grab the company name */
-		SetDParam(0, c->index);
-		std::string company_name = GetString(STR_COMPANY_NAME);
+		std::string company_name = GetString(STR_COMPANY_NAME, c->index);
 
 		std::string colour = GetString(STR_COLOUR_DARK_BLUE + _company_colours[c->index]);
 		IConsolePrint(CC_INFO, "#:{}({}) Company Name: '{}'  Year Founded: {}  Money: {}  Loan: {}  Value: {}  (T:{}, R:{}, P:{}, S:{}) {}",
diff --git a/src/fios.cpp b/src/fios.cpp
index cdb653a338..1729a58451 100644
--- a/src/fios.cpp
+++ b/src/fios.cpp
@@ -339,8 +339,7 @@ static void FiosGetFileList(SaveLoadOperation fop, bool show_dirs, FiosGetTypeAn
 			fios.type = FIOS_TYPE_PARENT;
 			fios.mtime = 0;
 			fios.name = "..";
-			SetDParamStr(0, "..");
-			fios.title = GetString(STR_SAVELOAD_PARENT_DIRECTORY);
+			fios.title = GetString(STR_SAVELOAD_PARENT_DIRECTORY, "..");
 			sort_start = file_list.size();
 		}
 
@@ -354,8 +353,7 @@ static void FiosGetFileList(SaveLoadOperation fop, bool show_dirs, FiosGetTypeAn
 			fios.type = FIOS_TYPE_DIR;
 			fios.mtime = 0;
 			fios.name = FS2OTTD(dir_entry.path().filename());
-			SetDParamStr(0, fios.name + PATHSEP);
-			fios.title = GetString(STR_SAVELOAD_DIRECTORY);
+			fios.title = GetString(STR_SAVELOAD_DIRECTORY, fios.name + PATHSEP);
 		}
 
 		/* Sort the subdirs always by name, ascending, remember user-sorting order */
diff --git a/src/group_gui.cpp b/src/group_gui.cpp
index f504515d02..c040312c2e 100644
--- a/src/group_gui.cpp
+++ b/src/group_gui.cpp
@@ -170,13 +170,11 @@ void BuildGuiGroupList(GUIGroupList &dst, bool fold, Owner owner, VehicleType ve
 
 	list.Sort([&last_group](const GUIGroupListItem &a, const GUIGroupListItem &b) -> bool {
 		if (a.group != last_group[0].first) {
-			SetDParam(0, a.group->index);
-			last_group[0] = {a.group, GetString(STR_GROUP_NAME)};
+			last_group[0] = {a.group, GetString(STR_GROUP_NAME, a.group->index)};
 		}
 
 		if (b.group != last_group[1].first) {
-			SetDParam(0, b.group->index);
-			last_group[1] = {b.group, GetString(STR_GROUP_NAME)};
+			last_group[1] = {b.group, GetString(STR_GROUP_NAME, b.group->index)};
 		}
 
 		int r = StrNaturalCompare(last_group[0].second, last_group[1].second); // Sort by name (natural sorting).
diff --git a/src/highscore.cpp b/src/highscore.cpp
index 112b88d5a2..1520a1ac4d 100644
--- a/src/highscore.cpp
+++ b/src/highscore.cpp
@@ -68,9 +68,7 @@ int8_t SaveHighScoreValue(const Company *c)
 	std::move_backward(it, highscores.end() - 1, highscores.end());
 
 	/* Fill the elements. */
-	SetDParam(0, c->index);
-	SetDParam(1, c->index);
-	it->name = GetString(STR_HIGHSCORE_NAME); // get manager/company name string
+	it->name = GetString(STR_HIGHSCORE_NAME, c->index, c->index); // get manager/company name string
 	it->score = score;
 	it->title = EndGameGetPerformanceTitleFromValue(score);
 	return std::distance(highscores.begin(), it);
@@ -104,9 +102,7 @@ int8_t SaveHighScoreValueNetwork()
 	for (size_t i = 0; i < count && i < highscores.size(); i++) {
 		const Company *c = cl[i];
 		auto &highscore = highscores[i];
-		SetDParam(0, c->index);
-		SetDParam(1, c->index);
-		highscore.name = GetString(STR_HIGHSCORE_NAME); // get manager/company name string
+		highscore.name = GetString(STR_HIGHSCORE_NAME, c->index, c->index); // get manager/company name string
 		highscore.score = c->old_economy[0].performance_history;
 		highscore.title = EndGameGetPerformanceTitleFromValue(highscore.score);
 
diff --git a/src/industry_gui.cpp b/src/industry_gui.cpp
index 6eccb0cc1a..4b7779fde0 100644
--- a/src/industry_gui.cpp
+++ b/src/industry_gui.cpp
@@ -391,13 +391,9 @@ class BuildIndustryWindow : public Window {
 		}
 
 		if (numcargo > 0) {
-			SetDParam(0, CargoSpec::Get(cargolist[firstcargo])->name);
-			SetDParamStr(1, cargo_suffix[firstcargo].text);
-			cargostring = GetString(prefixstr) + cargostring;
+			cargostring = GetString(prefixstr, CargoSpec::Get(cargolist[firstcargo])->name, cargo_suffix[firstcargo].text) + cargostring;
 		} else {
-			SetDParam(0, STR_JUST_NOTHING);
-			SetDParamStr(1, "");
-			cargostring = GetString(prefixstr);
+			cargostring = GetString(prefixstr, STR_JUST_NOTHING, "");
 		}
 
 		return cargostring;
diff --git a/src/intro_gui.cpp b/src/intro_gui.cpp
index 9e6e7393db..0855b25d36 100644
--- a/src/intro_gui.cpp
+++ b/src/intro_gui.cpp
@@ -313,13 +313,11 @@ struct SelectGameWindow : public Window {
 		bool changed = false;
 
 		if (NWidgetResizeBase *wid = this->GetWidget<NWidgetResizeBase>(WID_SGI_BASESET); wid != nullptr && wid->current_x > 0) {
-			SetDParam(0, _missing_extra_graphics);
-			changed |= wid->UpdateMultilineWidgetSize(GetString(STR_INTRO_BASESET), 3);
+			changed |= wid->UpdateMultilineWidgetSize(GetString(STR_INTRO_BASESET, _missing_extra_graphics), 3);
 		}
 
 		if (NWidgetResizeBase *wid = this->GetWidget<NWidgetResizeBase>(WID_SGI_TRANSLATION); wid != nullptr && wid->current_x > 0) {
-			SetDParam(0, _current_language->missing);
-			changed |= wid->UpdateMultilineWidgetSize(GetString(STR_INTRO_TRANSLATION), 3);
+			changed |= wid->UpdateMultilineWidgetSize(GetString(STR_INTRO_TRANSLATION, _current_language->missing), 3);
 		}
 
 		if (changed) this->ReInit(0, 0, this->flags.Test(WindowFlag::Centred));
diff --git a/src/linkgraph/linkgraph_gui.cpp b/src/linkgraph/linkgraph_gui.cpp
index b2e6e86964..c40663bbb4 100644
--- a/src/linkgraph/linkgraph_gui.cpp
+++ b/src/linkgraph/linkgraph_gui.cpp
@@ -384,10 +384,8 @@ bool LinkGraphOverlay::ShowTooltip(Point pt, TooltipCloseCondition close_cond)
 					const auto &back = k->second;
 					back_time = back.time;
 					if (back.Usage() > 0) {
-						SetDParam(0, back.cargo);
-						SetDParam(1, back.Usage());
-						SetDParam(2, back.Usage() * 100 / (back.capacity + 1));
-						tooltip_extension = GetString(STR_LINKGRAPH_STATS_TOOLTIP_RETURN_EXTENSION);
+						tooltip_extension = GetString(STR_LINKGRAPH_STATS_TOOLTIP_RETURN_EXTENSION,
+								back.cargo, back.Usage(), back.Usage() * 100 / (back.capacity + 1));
 					}
 				}
 				/* Add information about the travel time if known. */
diff --git a/src/misc_gui.cpp b/src/misc_gui.cpp
index e971720de6..f494d11fa6 100644
--- a/src/misc_gui.cpp
+++ b/src/misc_gui.cpp
@@ -179,8 +179,7 @@ public:
 		this->landinfo_data.clear();
 
 		/* Tiletype */
-		SetDParam(0, td.dparam);
-		this->landinfo_data.push_back(GetString(td.str));
+		this->landinfo_data.push_back(GetString(td.str, td.dparam));
 
 		/* Up to four owners */
 		for (uint i = 0; i < 4; i++) {
@@ -211,94 +210,76 @@ public:
 		this->landinfo_data.push_back(GetString(str));
 
 		/* Location */
-		SetDParam(0, TileX(tile));
-		SetDParam(1, TileY(tile));
-		SetDParam(2, GetTileZ(tile));
-		this->landinfo_data.push_back(GetString(STR_LAND_AREA_INFORMATION_LANDINFO_COORDS));
+		this->landinfo_data.push_back(GetString(STR_LAND_AREA_INFORMATION_LANDINFO_COORDS, TileX(tile), TileY(tile), GetTileZ(tile)));
 
 		/* Tile index */
-		SetDParam(0, tile);
-		SetDParam(1, tile);
-		this->landinfo_data.push_back(GetString(STR_LAND_AREA_INFORMATION_LANDINFO_INDEX));
+		this->landinfo_data.push_back(GetString(STR_LAND_AREA_INFORMATION_LANDINFO_INDEX, tile, tile));
 
 		/* Local authority */
-		SetDParam(0, STR_LAND_AREA_INFORMATION_LOCAL_AUTHORITY_NONE);
-		if (t != nullptr) {
-			SetDParam(0, STR_TOWN_NAME);
-			SetDParam(1, t->index);
+		if (t == nullptr) {
+			this->landinfo_data.push_back(GetString(STR_LAND_AREA_INFORMATION_LOCAL_AUTHORITY, STR_LAND_AREA_INFORMATION_LOCAL_AUTHORITY_NONE, std::monostate{}));
+		} else {
+			this->landinfo_data.push_back(GetString(STR_LAND_AREA_INFORMATION_LOCAL_AUTHORITY, STR_TOWN_NAME, t->index));
 		}
-		this->landinfo_data.push_back(GetString(STR_LAND_AREA_INFORMATION_LOCAL_AUTHORITY));
 
 		/* Build date */
 		if (td.build_date != CalendarTime::INVALID_DATE) {
-			SetDParam(0, td.build_date);
-			this->landinfo_data.push_back(GetString(STR_LAND_AREA_INFORMATION_BUILD_DATE));
+			this->landinfo_data.push_back(GetString(STR_LAND_AREA_INFORMATION_BUILD_DATE, td.build_date));
 		}
 
 		/* Station class */
 		if (td.station_class != STR_NULL) {
-			SetDParam(0, td.station_class);
-			this->landinfo_data.push_back(GetString(STR_LAND_AREA_INFORMATION_STATION_CLASS));
+			this->landinfo_data.push_back(GetString(STR_LAND_AREA_INFORMATION_STATION_CLASS, td.station_class));
 		}
 
 		/* Station type name */
 		if (td.station_name != STR_NULL) {
-			SetDParam(0, td.station_name);
-			this->landinfo_data.push_back(GetString(STR_LAND_AREA_INFORMATION_STATION_TYPE));
+			this->landinfo_data.push_back(GetString(STR_LAND_AREA_INFORMATION_STATION_TYPE, td.station_name));
 		}
 
 		/* Airport class */
 		if (td.airport_class != STR_NULL) {
-			SetDParam(0, td.airport_class);
-			this->landinfo_data.push_back(GetString(STR_LAND_AREA_INFORMATION_AIRPORT_CLASS));
+			this->landinfo_data.push_back(GetString(STR_LAND_AREA_INFORMATION_AIRPORT_CLASS, td.airport_class));
 		}
 
 		/* Airport name */
 		if (td.airport_name != STR_NULL) {
-			SetDParam(0, td.airport_name);
-			this->landinfo_data.push_back(GetString(STR_LAND_AREA_INFORMATION_AIRPORT_NAME));
+			this->landinfo_data.push_back(GetString(STR_LAND_AREA_INFORMATION_AIRPORT_NAME, td.airport_name));
 		}
 
 		/* Airport tile name */
 		if (td.airport_tile_name != STR_NULL) {
-			SetDParam(0, td.airport_tile_name);
-			this->landinfo_data.push_back(GetString(STR_LAND_AREA_INFORMATION_AIRPORTTILE_NAME));
+			this->landinfo_data.push_back(GetString(STR_LAND_AREA_INFORMATION_AIRPORTTILE_NAME, td.airport_tile_name));
 		}
 
 		/* Rail type name */
 		if (td.railtype != STR_NULL) {
-			SetDParam(0, td.railtype);
-			this->landinfo_data.push_back(GetString(STR_LANG_AREA_INFORMATION_RAIL_TYPE));
+			this->landinfo_data.push_back(GetString(STR_LANG_AREA_INFORMATION_RAIL_TYPE, td.railtype));
 		}
 
 		/* Rail speed limit */
 		if (td.rail_speed != 0) {
-			SetDParam(0, PackVelocity(td.rail_speed, VEH_TRAIN));
-			this->landinfo_data.push_back(GetString(STR_LANG_AREA_INFORMATION_RAIL_SPEED_LIMIT));
+			this->landinfo_data.push_back(GetString(STR_LANG_AREA_INFORMATION_RAIL_SPEED_LIMIT, PackVelocity(td.rail_speed, VEH_TRAIN)));
 		}
 
 		/* Road type name */
 		if (td.roadtype != STR_NULL) {
-			SetDParam(0, td.roadtype);
-			this->landinfo_data.push_back(GetString(STR_LANG_AREA_INFORMATION_ROAD_TYPE));
+			this->landinfo_data.push_back(GetString(STR_LANG_AREA_INFORMATION_ROAD_TYPE, td.roadtype));
 		}
 
 		/* Road speed limit */
 		if (td.road_speed != 0) {
-			SetDParam(0, PackVelocity(td.road_speed, VEH_ROAD));
-			this->landinfo_data.push_back(GetString(STR_LANG_AREA_INFORMATION_ROAD_SPEED_LIMIT));
+			this->landinfo_data.push_back(GetString(STR_LANG_AREA_INFORMATION_ROAD_SPEED_LIMIT, PackVelocity(td.road_speed, VEH_ROAD)));
 		}
 
 		/* Tram type name */
 		if (td.tramtype != STR_NULL) {
-			SetDParam(0, td.tramtype);
-			this->landinfo_data.push_back(GetString(STR_LANG_AREA_INFORMATION_TRAM_TYPE));
+			this->landinfo_data.push_back(GetString(STR_LANG_AREA_INFORMATION_TRAM_TYPE, td.tramtype));
 		}
 
 		/* Tram speed limit */
 		if (td.tram_speed != 0) {
-			SetDParam(0, PackVelocity(td.tram_speed, VEH_ROAD));
-			this->landinfo_data.push_back(GetString(STR_LANG_AREA_INFORMATION_TRAM_SPEED_LIMIT));
+			this->landinfo_data.push_back(GetString(STR_LANG_AREA_INFORMATION_TRAM_SPEED_LIMIT, PackVelocity(td.tram_speed, VEH_ROAD)));
 		}
 
 		/* Tile protection status */
@@ -308,8 +289,7 @@ public:
 
 		/* NewGRF name */
 		if (td.grf != nullptr) {
-			SetDParamStr(0, td.grf);
-			this->landinfo_data.push_back(GetString(STR_LAND_AREA_INFORMATION_NEWGRF_NAME));
+			this->landinfo_data.push_back(GetString(STR_LAND_AREA_INFORMATION_NEWGRF_NAME, td.grf));
 		}
 
 		/* Cargo acceptance is displayed in a extra multiline */
diff --git a/src/network/network_admin.cpp b/src/network/network_admin.cpp
index 611a3980ad..e8f6b78a4a 100644
--- a/src/network/network_admin.cpp
+++ b/src/network/network_admin.cpp
@@ -321,10 +321,8 @@ NetworkRecvStatus ServerNetworkAdminSocketHandler::SendCompanyInfo(const Company
 	auto p = std::make_unique<Packet>(this, ADMIN_PACKET_SERVER_COMPANY_INFO);
 
 	p->Send_uint8 (c->index);
-	SetDParam(0, c->index);
-	p->Send_string(GetString(STR_COMPANY_NAME));
-	SetDParam(0, c->index);
-	p->Send_string(GetString(STR_PRESIDENT_NAME));
+	p->Send_string(GetString(STR_COMPANY_NAME, c->index));
+	p->Send_string(GetString(STR_PRESIDENT_NAME, c->index));
 	p->Send_uint8 (c->colour);
 	p->Send_bool  (true);
 	p->Send_uint32(c->inaugurated_year.base());
@@ -346,10 +344,8 @@ NetworkRecvStatus ServerNetworkAdminSocketHandler::SendCompanyUpdate(const Compa
 	auto p = std::make_unique<Packet>(this, ADMIN_PACKET_SERVER_COMPANY_UPDATE);
 
 	p->Send_uint8 (c->index);
-	SetDParam(0, c->index);
-	p->Send_string(GetString(STR_COMPANY_NAME));
-	SetDParam(0, c->index);
-	p->Send_string(GetString(STR_PRESIDENT_NAME));
+	p->Send_string(GetString(STR_COMPANY_NAME, c->index));
+	p->Send_string(GetString(STR_PRESIDENT_NAME, c->index));
 	p->Send_uint8 (c->colour);
 	p->Send_bool  (true);
 	p->Send_uint8 (CeilDiv(c->months_of_bankruptcy, 3)); // send as quarters_of_bankruptcy
diff --git a/src/network/network_chat_gui.cpp b/src/network/network_chat_gui.cpp
index 5ed500e36f..e4890d5699 100644
--- a/src/network/network_chat_gui.cpp
+++ b/src/network/network_chat_gui.cpp
@@ -277,8 +277,7 @@ private:
 		}
 		for (const Town *t : Town::Iterate()) {
 			/* Get the town-name via the string-system */
-			SetDParam(0, t->index);
-			std::string town_name = GetString(STR_TOWN_NAME);
+			std::string town_name = GetString(STR_TOWN_NAME, t->index);
 			if (town_name.starts_with(query)) {
 				suggestions.push_back(std::move(town_name));
 			}
diff --git a/src/network/network_client.cpp b/src/network/network_client.cpp
index 8536bf8631..34adfdb2d2 100644
--- a/src/network/network_client.cpp
+++ b/src/network/network_client.cpp
@@ -970,9 +970,8 @@ NetworkRecvStatus ClientNetworkGameSocketHandler::Receive_SERVER_CHAT(Packet &p)
 			/* For speaking to company, we need the company-name */
 			case NETWORK_ACTION_CHAT_COMPANY: {
 				StringID str = Company::IsValidID(ci_to->client_playas) ? STR_COMPANY_NAME : STR_NETWORK_SPECTATORS;
-				SetDParam(0, ci_to->client_playas);
 
-				name = GetString(str);
+				name = GetString(str, ci_to->client_playas);
 				ci = NetworkClientInfo::GetByClientID(_network_own_client_id);
 				break;
 			}
diff --git a/src/network/network_server.cpp b/src/network/network_server.cpp
index 90b4c12da0..e5a58ff80f 100644
--- a/src/network/network_server.cpp
+++ b/src/network/network_server.cpp
@@ -1327,8 +1327,7 @@ void NetworkServerSendChat(NetworkAction action, DestType desttype, int dest, co
 			if (ci != nullptr && show_local) {
 				if (from_id == CLIENT_ID_SERVER) {
 					StringID str = Company::IsValidID(ci_to->client_playas) ? STR_COMPANY_NAME : STR_NETWORK_SPECTATORS;
-					SetDParam(0, ci_to->client_playas);
-					std::string name = GetString(str);
+					std::string name = GetString(str, ci_to->client_playas);
 					NetworkTextMessage(action, GetDrawStringCompanyColour(ci_own->client_playas), true, name, msg, data);
 				} else {
 					for (NetworkClientSocket *cs : NetworkClientSocket::Iterate()) {
@@ -2003,8 +2002,7 @@ void NetworkServerDoMove(ClientID client_id, CompanyID company_id)
 		NetworkServerSendChat(NETWORK_ACTION_COMPANY_SPECTATOR, DESTTYPE_BROADCAST, 0, "", client_id);
 	} else {
 		/* The client has joined another company. */
-		SetDParam(0, company_id);
-		std::string company_name = GetString(STR_COMPANY_NAME);
+		std::string company_name = GetString(STR_COMPANY_NAME, company_id);
 		NetworkServerSendChat(NETWORK_ACTION_COMPANY_JOIN, DESTTYPE_BROADCAST, 0, company_name, client_id);
 	}
 
diff --git a/src/newgrf_commons.cpp b/src/newgrf_commons.cpp
index 576efbf37a..23d6b803d0 100644
--- a/src/newgrf_commons.cpp
+++ b/src/newgrf_commons.cpp
@@ -515,12 +515,9 @@ void ErrorUnknownCallbackResult(uint32_t grfid, uint16_t cbid, uint16_t cb_res)
 	}
 
 	/* debug output */
-	SetDParamStr(0, grfconfig->GetName());
-	Debug(grf, 0, "{}", StrMakeValid(GetString(STR_NEWGRF_BUGGY)));
+	Debug(grf, 0, "{}", StrMakeValid(GetString(STR_NEWGRF_BUGGY, grfconfig->GetName())));
 
-	SetDParam(1, cbid);
-	SetDParam(2, cb_res);
-	Debug(grf, 0, "{}", StrMakeValid(GetString(STR_NEWGRF_BUGGY_UNKNOWN_CALLBACK_RESULT)));
+	Debug(grf, 0, "{}", StrMakeValid(GetString(STR_NEWGRF_BUGGY_UNKNOWN_CALLBACK_RESULT, cbid, cb_res)));
 }
 
 /**
diff --git a/src/openttd.cpp b/src/openttd.cpp
index a80d494e86..82943ac624 100644
--- a/src/openttd.cpp
+++ b/src/openttd.cpp
@@ -622,8 +622,7 @@ int openttd_main(std::span<char * const> arguments)
 				fmt::print(stderr, "Failed to open savegame\n");
 				if (_load_check_data.HasErrors()) {
 					InitializeLanguagePacks(); // A language pack is needed for GetString()
-					SetDParamStr(0, _load_check_data.error_msg);
-					fmt::print(stderr, "{}\n", GetString(_load_check_data.error));
+					fmt::print(stderr, "{}\n", GetString(_load_check_data.error, _load_check_data.error_msg));
 				}
 				return ret;
 			}
diff --git a/src/story_gui.cpp b/src/story_gui.cpp
index 6592e5e830..e95542f65f 100644
--- a/src/story_gui.cpp
+++ b/src/story_gui.cpp
@@ -185,8 +185,7 @@ protected:
 		/* Generate generic title if selected page have no custom title. */
 		StoryPage *page = this->GetSelPage();
 		if (page != nullptr && page->title.empty()) {
-			SetDParam(0, GetSelPageNum() + 1);
-			selected_generic_title = GetString(STR_STORY_BOOK_GENERIC_PAGE_ITEM);
+			selected_generic_title = GetString(STR_STORY_BOOK_GENERIC_PAGE_ITEM, GetSelPageNum() + 1);
 		}
 
 		this->story_page_elements.ForceRebuild();
diff --git a/src/subsidy.cpp b/src/subsidy.cpp
index 42340df37f..24078ed766 100644
--- a/src/subsidy.cpp
+++ b/src/subsidy.cpp
@@ -47,8 +47,7 @@ void Subsidy::AwardTo(CompanyID company)
 	this->awarded = company;
 	this->remaining = _settings_game.difficulty.subsidy_duration * CalendarTime::MONTHS_IN_YEAR;
 
-	SetDParam(0, company);
-	std::string company_name = GetString(STR_COMPANY_NAME);
+	std::string company_name = GetString(STR_COMPANY_NAME, company);
 
 	/* Add a news item */
 	std::pair<NewsReferenceType, NewsReferenceType> reftype = SetupSubsidyDecodeParam(this, SubsidyDecodeParamType::NewsAwarded, 1);
diff --git a/src/toolbar_gui.cpp b/src/toolbar_gui.cpp
index 44cbe713bc..ca8cf0084b 100644
--- a/src/toolbar_gui.cpp
+++ b/src/toolbar_gui.cpp
@@ -100,9 +100,7 @@ class DropDownListCompanyItem : public DropDownIcon<DropDownIcon<DropDownString<
 public:
 	DropDownListCompanyItem(CompanyID company, bool shaded) : DropDownIcon<DropDownIcon<DropDownString<DropDownListItem>, true>>(SPR_COMPANY_ICON, COMPANY_SPRITE_COLOUR(company), NetworkCanJoinCompany(company) ? SPR_EMPTY : SPR_LOCK, PAL_NONE, STR_NULL, company, false, shaded)
 	{
-		SetDParam(0, company);
-		SetDParam(1, company);
-		this->SetString(GetString(STR_COMPANY_NAME_COMPANY_NUM));
+		this->SetString(GetString(STR_COMPANY_NAME_COMPANY_NUM, company, company));
 	}
 };
 
diff --git a/src/town_cmd.cpp b/src/town_cmd.cpp
index caabb617f1..8c1d4c0327 100644
--- a/src/town_cmd.cpp
+++ b/src/town_cmd.cpp
@@ -2233,8 +2233,7 @@ std::tuple<CommandCost, Money, TownID> CmdFoundTown(DoCommandFlags flags, TileIn
 				SetDParam(0, t->index);
 				AddTileNewsItem(STR_NEWS_NEW_TOWN_UNSPONSORED, NewsType::IndustryOpen, tile);
 			} else {
-				SetDParam(0, _current_company);
-				std::string company_name = GetString(STR_COMPANY_NAME);
+				std::string company_name = GetString(STR_COMPANY_NAME, _current_company);
 
 				SetDParamStr(0, company_name);
 				SetDParam(1, t->index);
@@ -3408,8 +3407,7 @@ static CommandCost TownActionRoadRebuild(Town *t, DoCommandFlags flags)
 	if (flags.Test(DoCommandFlag::Execute)) {
 		t->road_build_months = 6;
 
-		SetDParam(0, _current_company);
-		std::string company_name = GetString(STR_COMPANY_NAME);
+		std::string company_name = GetString(STR_COMPANY_NAME, _current_company);
 
 		SetDParam(0, t->index);
 		SetDParamStr(1, company_name);
diff --git a/src/town_gui.cpp b/src/town_gui.cpp
index 2516bdaf8e..a508e5d15e 100644
--- a/src/town_gui.cpp
+++ b/src/town_gui.cpp
@@ -1667,16 +1667,12 @@ struct BuildHouseWindow : public PickerWindow {
 			if (max_year == CalendarTime::MAX_YEAR) {
 				return GetString(STR_HOUSE_PICKER_YEARS_ANY);
 			}
-			SetDParam(0, max_year);
-			return GetString(STR_HOUSE_PICKER_YEARS_UNTIL);
+			return GetString(STR_HOUSE_PICKER_YEARS_UNTIL, max_year);
 		}
 		if (max_year == CalendarTime::MAX_YEAR) {
-			SetDParam(0, min_year);
-			return GetString(STR_HOUSE_PICKER_YEARS_FROM);
+			return GetString(STR_HOUSE_PICKER_YEARS_FROM, min_year);
 		}
-		SetDParam(0, min_year);
-		SetDParam(1, max_year);
-		return GetString(STR_HOUSE_PICKER_YEARS);
+		return GetString(STR_HOUSE_PICKER_YEARS, min_year, max_year);
 	}
 
 	/**
@@ -1688,12 +1684,10 @@ struct BuildHouseWindow : public PickerWindow {
 	{
 		std::stringstream line;
 
-		SetDParam(0, GetHouseName(hs));
-		line << GetString(STR_HOUSE_PICKER_NAME);
+		line << GetString(STR_HOUSE_PICKER_NAME, GetHouseName(hs));
 		line << "\n";
 
-		SetDParam(0, hs->population);
-		line << GetString(STR_HOUSE_PICKER_POPULATION);
+		line << GetString(STR_HOUSE_PICKER_POPULATION, hs->population);
 		line << "\n";
 
 		line << GetHouseYear(hs->min_year, hs->max_year);
@@ -1704,9 +1698,7 @@ struct BuildHouseWindow : public PickerWindow {
 		if (hs->building_flags.Test(BuildingFlag::Size2x1)) size = 0x21;
 		if (hs->building_flags.Test(BuildingFlag::Size1x2)) size = 0x12;
 		if (hs->building_flags.Test(BuildingFlag::Size2x2)) size = 0x22;
-		SetDParam(0, GB(size, 0, 4));
-		SetDParam(1, GB(size, 4, 4));
-		line << GetString(STR_HOUSE_PICKER_SIZE);
+		line << GetString(STR_HOUSE_PICKER_SIZE, GB(size, 0, 4), GB(size, 4, 4));
 		line << "\n";
 
 		auto cargo_string = BuildCargoAcceptanceString(GetAcceptedCargoOfHouse(hs), STR_HOUSE_PICKER_CARGO_ACCEPTED);
diff --git a/src/vehicle.cpp b/src/vehicle.cpp
index 02c23eda99..4a27f73fc2 100644
--- a/src/vehicle.cpp
+++ b/src/vehicle.cpp
@@ -331,11 +331,9 @@ void ShowNewGrfVehicleError(EngineID engine, StringID part1, StringID part2, GRF
 	}
 
 	/* debug output */
-	SetDParamStr(0, grfconfig->GetName());
-	Debug(grf, 0, "{}", StrMakeValid(GetString(part1)));
+	Debug(grf, 0, "{}", StrMakeValid(GetString(part1, grfconfig->GetName())));
 
-	SetDParam(1, engine);
-	Debug(grf, 0, "{}", StrMakeValid(GetString(part2)));
+	Debug(grf, 0, "{}", StrMakeValid(GetString(part2, std::monostate{}, engine)));
 }
 
 /**
diff --git a/src/vehicle_gui.cpp b/src/vehicle_gui.cpp
index 5222b97f81..3b62bb6dd8 100644
--- a/src/vehicle_gui.cpp
+++ b/src/vehicle_gui.cpp
@@ -1450,14 +1450,12 @@ static bool VehicleNameSorter(const Vehicle * const &a, const Vehicle * const &b
 
 	if (a != _last_vehicle[0]) {
 		_last_vehicle[0] = a;
-		SetDParam(0, a->index);
-		last_name[0] = GetString(STR_VEHICLE_NAME);
+		last_name[0] = GetString(STR_VEHICLE_NAME, a->index);
 	}
 
 	if (b != _last_vehicle[1]) {
 		_last_vehicle[1] = b;
-		SetDParam(0, b->index);
-		last_name[1] = GetString(STR_VEHICLE_NAME);
+		last_name[1] = GetString(STR_VEHICLE_NAME, b->index);
 	}
 
 	int r = StrNaturalCompare(last_name[0], last_name[1]); // Sort by name (natural sorting).
diff --git a/src/viewport.cpp b/src/viewport.cpp
index 7d8f6b5536..bea1f333b5 100644
--- a/src/viewport.cpp
+++ b/src/viewport.cpp
@@ -1369,9 +1369,7 @@ static void ViewportAddTownStrings(DrawPixelInfo *dpi, const std::vector<const T
 		std::string *str = ViewportAddString(dpi, &t->cache.sign, flags, INVALID_COLOUR);
 		if (str == nullptr) continue;
 
-		SetDParam(0, t->index);
-		SetDParam(1, t->cache.population);
-		*str = GetString(stringid);
+		*str = GetString(stringid, t->index, t->cache.population);
 	}
 }
 
@@ -1395,8 +1393,7 @@ static void ViewportAddSignStrings(DrawPixelInfo *dpi, const std::vector<const S
 			(si->owner == OWNER_NONE) ? COLOUR_GREY : (si->owner == OWNER_DEITY ? INVALID_COLOUR : _company_colours[si->owner]));
 		if (str == nullptr) continue;
 
-		SetDParam(0, si->index);
-		*str = GetString(STR_SIGN_NAME);
+		*str = GetString(STR_SIGN_NAME, si->index);
 	}
 }
 
@@ -1417,12 +1414,9 @@ static void ViewportAddStationStrings(DrawPixelInfo *dpi, const std::vector<cons
 		if (str == nullptr) continue;
 
 		if (Station::IsExpected(st)) { /* Station */
-			SetDParam(0, st->index);
-			SetDParam(1, st->facilities);
-			*str = GetString(small ? STR_STATION_NAME : STR_VIEWPORT_STATION);
+			*str = GetString(small ? STR_STATION_NAME : STR_VIEWPORT_STATION, st->index, st->facilities);
 		} else { /* Waypoint */
-			SetDParam(0, st->index);
-			*str = GetString(STR_WAYPOINT_NAME);
+			*str = GetString(STR_WAYPOINT_NAME, st->index);
 		}
 	}
 }