diff --git a/src/saland/Game.cpp b/src/saland/Game.cpp
index 672ce26..d4c1cb8 100644
--- a/src/saland/Game.cpp
+++ b/src/saland/Game.cpp
@@ -150,8 +150,7 @@ Game::Game() {
 }
 
 Game::~Game() {
-	std::string data2save = sago::tiled::tilemap2string(data->gameRegion.world.tm);
-	sago::WriteFileContent("maps/sample1.tmx", data2save);
+	data->gameRegion.SaveRegion();
 }
 
 bool Game::IsActive() {
diff --git a/src/saland/GameRegion.cpp b/src/saland/GameRegion.cpp
index 251a637..0ab547a 100644
--- a/src/saland/GameRegion.cpp
+++ b/src/saland/GameRegion.cpp
@@ -24,13 +24,25 @@ https://github.com/sago007/saland
 #include "GameRegion.hpp"
 
 GameRegion::GameRegion() {
-	Init();
+	Init(0, 0);
 }
 
-void GameRegion::Init() {
+static std::string createFileName(int x, int y) {
+	std::string ret = std::string("maps/m")+std::to_string(x)+"x"+std::to_string(y)+".tmx" ;
+	return ret;
+}
+
+void GameRegion::Init(int x, int y) {
+	region_x = x;
+	region_y = y;
+	mapFileName = createFileName(region_x, region_y);
+	std::string loadMap = mapFileName;
+	if (!sago::FileExists(loadMap.c_str())) {
+		loadMap = "maps/sample1.tmx";
+	}
 	b2Vec2 gravity(0.0f, 0.0f);
 	physicsBox.reset(new b2World(gravity));
-	world.init(physicsBox);
+	world.init(physicsBox, loadMap);
 	
 	std::shared_ptr<MiscItem> barrel = std::make_shared<MiscItem>();
 	barrel.get()->Radius = 16.0f;
@@ -74,5 +86,8 @@ void GameRegion::Init() {
 
 }
 
-
+void GameRegion::SaveRegion() {
+	std::string data2save = sago::tiled::tilemap2string(world.tm);
+	sago::WriteFileContent(mapFileName.c_str(), data2save);
+}
 
diff --git a/src/saland/GameRegion.hpp b/src/saland/GameRegion.hpp
index 4a7e6e9..476754a 100644
--- a/src/saland/GameRegion.hpp
+++ b/src/saland/GameRegion.hpp
@@ -31,12 +31,15 @@ https://github.com/sago007/saland
 class GameRegion {
 public:
 	GameRegion();
-	void Init();
+	void Init(int x, int y);
 	std::vector<std::shared_ptr<Placeable> > placeables;
 	std::shared_ptr<b2World> physicsBox;
+	void SaveRegion();
 	World world;
 private:
-
+	int region_x = 0;
+	int region_y = 0;
+	std::string mapFileName = "maps/sample1.tmx";
 };
 
 #endif /* GAMEREGION_HPP */
diff --git a/src/saland/model/World.cpp b/src/saland/model/World.cpp
index 5217200..91a02a0 100644
--- a/src/saland/model/World.cpp
+++ b/src/saland/model/World.cpp
@@ -142,13 +142,17 @@ void World::init_physics(std::shared_ptr<b2World>& world) {
 	}
 }
 
-void World::init(std::shared_ptr<b2World>& world) {
+void World::init(std::shared_ptr<b2World>& world, const std::string& mapFileName) {
 	this->physicsWorld = world;
 	std::string tsx_file = sago::GetFileContent("maps/terrain.tsx");
-	std::string tmx_file = sago::GetFileContent("maps/sample1.tmx");
+	std::string tmx_file = sago::GetFileContent(mapFileName);
 	ts = sago::tiled::string2tileset(tsx_file);
 	tm = sago::tiled::string2tilemap(tmx_file);
 	tm.tileset.alternativeSource = &ts;
 	init_physics(world);
 }
 
+void World::init(std::shared_ptr<b2World>& world) {
+	init(world, "maps/sample1.tmx");
+}
+
diff --git a/src/saland/model/World.hpp b/src/saland/model/World.hpp
index 47a53e7..0567ca6 100644
--- a/src/saland/model/World.hpp
+++ b/src/saland/model/World.hpp
@@ -32,6 +32,7 @@ class World {
 public:
 	World();
 	void init(std::shared_ptr<b2World>& world);
+	void init(std::shared_ptr<b2World>& world, const std::string& mapFileName);
 	void init_physics(std::shared_ptr<b2World>& world);
 //private:
 	sago::tiled::TileSet ts;