diff --git a/src/editor/map/context_manager.cpp b/src/editor/map/context_manager.cpp
index f682c8f88b8c..1e8aa125b201 100644
--- a/src/editor/map/context_manager.cpp
+++ b/src/editor/map/context_manager.cpp
@@ -718,7 +718,7 @@ void context_manager::generate_map_dialog()
 		if(map_string.empty()) {
 			gui2::show_transient_message("", _("Map creation failed."));
 		} else {
-			editor_map new_map(game_config_, map_string);
+			editor_map new_map(map_string);
 			editor_action_whole_map a(new_map);
 			get_map_context().set_needs_labels_reset(); // Ensure Player Start labels are updated together with newly generated map
 			perform_refresh(a);
@@ -951,7 +951,7 @@ void context_manager::revert_map()
 void context_manager::new_map(int width, int height, const t_translation::terrain_code& fill, bool new_context)
 {
 	const config& default_schedule = game_config_.find_child("editor_times", "id", "empty");
-	editor_map m(game_config_, width, height, fill);
+	editor_map m(width, height, fill);
 
 	if(new_context) {
 		int new_id = add_map_context(m, true, default_schedule);
@@ -964,7 +964,7 @@ void context_manager::new_map(int width, int height, const t_translation::terrai
 void context_manager::new_scenario(int width, int height, const t_translation::terrain_code& fill, bool new_context)
 {
 	const config& default_schedule = game_config_.find_child("editor_times", "id", "empty");
-	editor_map m(game_config_, width, height, fill);
+	editor_map m(width, height, fill);
 
 	if(new_context) {
 		int new_id = add_map_context(m, false, default_schedule);
@@ -1017,7 +1017,7 @@ void context_manager::create_default_context()
 			t_translation::read_terrain_code(game_config::default_terrain);
 
 		const config& default_schedule = game_config_.find_child("editor_times", "id", "empty");
-		add_map_context(editor_map(game_config_, 44, 33, default_terrain), true, default_schedule);
+		add_map_context(editor_map(44, 33, default_terrain), true, default_schedule);
 	} else {
 		for(const std::string& filename : saved_windows_) {
 			add_map_context(game_config_, filename);
diff --git a/src/editor/map/editor_map.cpp b/src/editor/map/editor_map.cpp
index de27de618cf4..4c5643c4b2e2 100644
--- a/src/editor/map/editor_map.cpp
+++ b/src/editor/map/editor_map.cpp
@@ -39,23 +39,23 @@ editor_map_load_exception wrap_exc(const char* type, const std::string& e_msg, c
 	return editor_map_load_exception(filename, msg);
 }
 
-editor_map::editor_map(const game_config_view& terrain_cfg)
-	: gamemap(std::make_shared<terrain_type_data>(terrain_cfg), "")
+editor_map::editor_map()
+	: gamemap("")
 	, selection_()
 {
 }
 
-editor_map::editor_map(const game_config_view& terrain_cfg, const std::string& data)
-	: gamemap(std::make_shared<terrain_type_data>(terrain_cfg), data)
+editor_map::editor_map(const std::string& data)
+	: gamemap(data)
 	, selection_()
 {
 	sanity_check();
 }
 
-editor_map editor_map::from_string(const game_config_view&  terrain_cfg, const std::string& data)
+editor_map editor_map::from_string(const std::string& data)
 {
 	try {
-		return editor_map(terrain_cfg, data);
+		return editor_map(data);
 	} catch (const incorrect_map_format_error& e) {
 		throw wrap_exc("format", e.message, "");
 	} catch (const wml_exception& e) {
@@ -65,8 +65,8 @@ editor_map editor_map::from_string(const game_config_view&  terrain_cfg, const s
 	}
 }
 
-editor_map::editor_map(const game_config_view& terrain_cfg, std::size_t width, std::size_t height, const t_translation::terrain_code & filler)
-	: gamemap(std::make_shared<terrain_type_data>(terrain_cfg), t_translation::write_game_map(t_translation::ter_map(width + 2, height + 2, filler)))
+editor_map::editor_map(std::size_t width, std::size_t height, const t_translation::terrain_code & filler)
+	: gamemap(t_translation::write_game_map(t_translation::ter_map(width + 2, height + 2, filler)))
 	, selection_()
 {
 	sanity_check();
diff --git a/src/editor/map/editor_map.hpp b/src/editor/map/editor_map.hpp
index 3f9a31fd6eac..8f827a5c8267 100644
--- a/src/editor/map/editor_map.hpp
+++ b/src/editor/map/editor_map.hpp
@@ -69,27 +69,26 @@ editor_map_load_exception wrap_exc(const char* type, const std::string& e_msg, c
 class editor_map : public gamemap
 {
 public:
-
 	/**
 	 * Empty map constructor
 	 */
-	explicit editor_map(const game_config_view& terrain_cfg);
+	editor_map();
 
 	/**
 	 * Create an editor map from a map data string
 	 */
-	editor_map(const game_config_view& terrain_cfg, const std::string& data);
+	editor_map(const std::string& data);
 
 	/**
 	 * Wrapper around editor_map(cfg, data) that catches possible exceptions
 	 * and wraps them in a editor_map_load_exception
 	 */
-	static editor_map from_string(const game_config_view& terrain_cfg, const std::string& data);
+	static editor_map from_string(const std::string& data);
 
 	/**
 	 * Create an editor map with the given dimensions and filler terrain
 	 */
-	editor_map(const game_config_view& terrain_cfg, std::size_t width, std::size_t height, const t_translation::terrain_code & filler);
+	editor_map(std::size_t width, std::size_t height, const t_translation::terrain_code & filler);
 
 	/**
 	 * Create an editor_map by upgrading an existing gamemap. The map data is
diff --git a/src/editor/map/map_context.cpp b/src/editor/map/map_context.cpp
index a4dc7eb12109..e281dde2084e 100644
--- a/src/editor/map/map_context.cpp
+++ b/src/editor/map/map_context.cpp
@@ -91,7 +91,7 @@ map_context::map_context(const game_config_view& game_config, const std::string&
 	, map_data_key_()
 	, embedded_(false)
 	, pure_map_(false)
-	, map_(game_config)
+	, map_()
 	, undo_stack_()
 	, redo_stack_()
 	, actions_since_save_(0)
@@ -161,7 +161,7 @@ map_context::map_context(const game_config_view& game_config, const std::string&
 	if(!boost::regex_search(
 		file_string, matched_map_data, rexpression_map_data, boost::regex_constants::match_not_dot_null)
 	) {
-		map_ = editor_map::from_string(game_config, file_string); // throws on error
+		map_ = editor_map::from_string(file_string); // throws on error
 		pure_map_ = true;
 
 		add_to_recent_files();
@@ -191,7 +191,7 @@ map_context::map_context(const game_config_view& game_config, const std::string&
 			LOG_ED << "Loading embedded map file" << std::endl;
 			embedded_ = true;
 			pure_map_ = true;
-			map_ = editor_map::from_string(game_config, map_data);
+			map_ = editor_map::from_string(map_data);
 		}
 
 		add_to_recent_files();
@@ -216,7 +216,7 @@ map_context::map_context(const game_config_view& game_config, const std::string&
 
 	filename_ = new_filename;
 	file_string = filesystem::read_file(filename_);
-	map_ = editor_map::from_string(game_config, file_string);
+	map_ = editor_map::from_string(file_string);
 	pure_map_ = true;
 
 	add_to_recent_files();
@@ -334,7 +334,7 @@ void map_context::load_scenario(const game_config_view& game_config)
 	victory_defeated_ = scenario["victory_when_enemies_defeated"].to_bool(true);
 	random_time_ = scenario["random_start_time"].to_bool(false);
 
-	map_ = editor_map::from_string(game_config, scenario["map_data"]); // throws on error
+	map_ = editor_map::from_string(scenario["map_data"]); // throws on error
 
 	labels_.read(scenario);
 
diff --git a/src/game_board.cpp b/src/game_board.cpp
index f7e37051f923..20ea59e7fcda 100644
--- a/src/game_board.cpp
+++ b/src/game_board.cpp
@@ -14,7 +14,6 @@
 
 #include "config.hpp"
 #include "game_board.hpp"
-#include "game_config_manager.hpp"
 #include "preferences/game.hpp"
 #include "log.hpp"
 #include "map/map.hpp"
@@ -36,7 +35,7 @@ static lg::log_domain log_engine_enemies("engine/enemies");
 
 game_board::game_board(const config& level)
 	: teams_()
-	, map_(new gamemap(game_config_manager::get()->terrain_types(), level["map_data"]))
+	, map_(std::make_unique<gamemap>(level["map_data"]))
 	, unit_id_manager_(level["next_underlying_unit_id"])
 	, units_()
 {
@@ -47,7 +46,9 @@ game_board::game_board(const game_board & other)
 	, labels_(other.labels_)
 	, map_(new gamemap(*(other.map_)))
 	, unit_id_manager_(other.unit_id_manager_)
-	, units_(other.units_) {}
+	, units_(other.units_)
+{
+}
 
 game_board::~game_board() {}
 
diff --git a/src/game_initialization/create_engine.cpp b/src/game_initialization/create_engine.cpp
index f880343b251c..dff8a12b06e9 100644
--- a/src/game_initialization/create_engine.cpp
+++ b/src/game_initialization/create_engine.cpp
@@ -67,8 +67,7 @@ void scenario::set_metadata()
 	const std::string& map_data = data_["map_data"];
 
 	try {
-		map_.reset(new gamemap(game_config_manager::get()->terrain_types(),
-			map_data));
+		map_.reset(new gamemap(map_data));
 	} catch(const incorrect_map_format_error& e) {
 		data_["description"] = _("Map could not be loaded: ") + e.message;
 
@@ -658,7 +657,7 @@ void create_engine::init_all_levels()
 			bool add_map = true;
 			std::unique_ptr<gamemap> map;
 			try {
-				map.reset(new gamemap(game_config_manager::get()->terrain_types(), user_map_data["map_data"]));
+				map.reset(new gamemap(user_map_data["map_data"]));
 			} catch (const incorrect_map_format_error& e) {
 				user_map_data["description"] = _("Map could not be loaded: ") + e.message;
 
diff --git a/src/game_initialization/lobby_data.cpp b/src/game_initialization/lobby_data.cpp
index b9cd719a2ab4..facd9bdb5d90 100644
--- a/src/game_initialization/lobby_data.cpp
+++ b/src/game_initialization/lobby_data.cpp
@@ -32,7 +32,6 @@
 #include "mp_game_settings.hpp"
 #include "preferences/credentials.hpp"
 #include "preferences/game.hpp"
-#include "terrain/type_data.hpp"
 #include "wml_exception.hpp"
 
 #include <iterator>
@@ -297,7 +296,7 @@ game_info::game_info(const config& game, const std::vector<std::string>& install
 		info_stream << " — ??×??";
 	} else {
 		try {
-			gamemap map(std::make_shared<terrain_type_data>(game_config), map_data);
+			gamemap map(map_data);
 			std::ostringstream msi;
 			msi << map.w() << font::unicode_multiplication_sign << map.h();
 			map_size_info = msi.str();
diff --git a/src/gui/widgets/minimap.cpp b/src/gui/widgets/minimap.cpp
index 088301e7477d..2fd51a0141c7 100644
--- a/src/gui/widgets/minimap.cpp
+++ b/src/gui/widgets/minimap.cpp
@@ -210,7 +210,7 @@ const surface minimap::get_image(const int w, const int h) const
 
 	try
 	{
-		const gamemap map(std::make_shared<terrain_type_data>(*terrain_), map_data_);
+		const gamemap map(map_data_);
 		const surface surf = image::getMinimap(w, h, map, nullptr, nullptr, true);
 		cache.emplace(key, value_type(surf));
 #ifdef DEBUG_MINIMAP_CACHE
diff --git a/src/map/map.cpp b/src/map/map.cpp
index 85f47798271f..92b9213e0641 100644
--- a/src/map/map.cpp
+++ b/src/map/map.cpp
@@ -21,6 +21,7 @@
 
 #include "config.hpp"
 #include "formula/string_utils.hpp"
+#include "game_config_manager.hpp"
 #include "log.hpp"
 #include "map/exception.hpp"
 #include "serialization/parser.hpp"
@@ -100,15 +101,21 @@ void gamemap::write_terrain(const map_location &loc, config& cfg) const
 	cfg["terrain"] = t_translation::write_terrain_code(get_terrain(loc));
 }
 
-gamemap::gamemap(const std::shared_ptr<terrain_type_data>& tdata, const std::string& data)
+gamemap::gamemap(const std::string& data)
 	: tiles_(1, 1)
-	, tdata_(tdata)
+	, tdata_()
 	, villages_()
 	, w_(-1)
 	, h_(-1)
 {
-	DBG_G << "loading map: '" << data << "'\n";
+	if(const auto* gcm = game_config_manager::get()) {
+		tdata_ = gcm->terrain_types();
+	} else {
+		// Should only be encountered in unit tests
+		tdata_ = std::make_shared<terrain_type_data>(game_config_view::wrap({}));
+	}
 
+	DBG_G << "loading map: '" << data << "'\n";
 	read(data);
 }
 
diff --git a/src/map/map.hpp b/src/map/map.hpp
index e43b807e61c6..8d1af75ef59b 100644
--- a/src/map/map.hpp
+++ b/src/map/map.hpp
@@ -68,15 +68,14 @@ class gamemap
 	const std::shared_ptr<terrain_type_data>& tdata() const { return tdata_; }
 
 	/**
-	 * Loads a map, with the given terrain configuration.
+	 * Loads a map.
 	 *
 	 * Data should be a series of lines, with each character representing one
 	 * hex on the map.  Starting locations are represented by numbers.
 	 *
-	 * @param tdata the terrain data
 	 * @param data the map data to load.
 	 */
-	gamemap(const std::shared_ptr<terrain_type_data>& tdata, const std::string& data); // throw(incorrect_map_format_error)
+	gamemap(const std::string& data); // throw(incorrect_map_format_error)
 
 	virtual ~gamemap();
 
diff --git a/src/scripting/game_lua_kernel.cpp b/src/scripting/game_lua_kernel.cpp
index 61a64bc4663f..68c0f0a76450 100644
--- a/src/scripting/game_lua_kernel.cpp
+++ b/src/scripting/game_lua_kernel.cpp
@@ -1069,7 +1069,7 @@ int game_lua_kernel::intf_terrain_mask(lua_State *L)
 	}
 
 
-	gamemap mask_map(board().map().tdata(), "");
+	gamemap mask_map("");
 	mask_map.read(t_str, false);
 	board().map_->overlay(mask_map, loc, rules, is_odd, ignore_special_locations);