diff --git a/src/saland/Game.cpp b/src/saland/Game.cpp
index 66ae41e..9d2f836 100644
--- a/src/saland/Game.cpp
+++ b/src/saland/Game.cpp
@@ -75,12 +75,13 @@ struct Game::GameImpl {
 	int world_mouse_y = 0;
 	char direction = 0;
 	Uint32 lastUpdate = 0;
+	std::string worldName = "world1";
 	sago::SagoTextField bottomField;
 };
 
 void Game::ResetWorld(int x, int y) {
 	data->gameRegion.SaveRegion();
-	data->gameRegion.Init(x, y);
+	data->gameRegion.Init(x, y, data->worldName);
 	data->human.reset(new Human());
 	data->gameRegion.placeables.push_back(data->human);
 	b2BodyDef myBodyDef;
diff --git a/src/saland/GameRegion.cpp b/src/saland/GameRegion.cpp
index 2945cdf..506d8d1 100644
--- a/src/saland/GameRegion.cpp
+++ b/src/saland/GameRegion.cpp
@@ -24,18 +24,18 @@ https://github.com/sago007/saland
 #include "GameRegion.hpp"
 
 GameRegion::GameRegion() {
-	Init(0, 0);
+	Init(0, 0, "world1");
 }
 
-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" ;
+static std::string createFileName(int x, int y,const std::string& worldName) {
+	std::string ret = std::string("worlds/")+worldName+"/"+std::string("maps/m")+std::to_string(x)+"x"+std::to_string(y)+".tmx" ;
 	return ret;
 }
 
-void GameRegion::Init(int x, int y) {
+void GameRegion::Init(int x, int y, const std::string& worldName) {
 	region_x = x;
 	region_y = y;
-	mapFileName = createFileName(region_x, region_y);
+	mapFileName = createFileName(region_x, region_y, worldName);
 	std::string loadMap = mapFileName;
 	if (!sago::FileExists(loadMap.c_str())) {
 		loadMap = "maps/sample1.tmx";
diff --git a/src/saland/GameRegion.hpp b/src/saland/GameRegion.hpp
index 0093111..1ff33ff 100644
--- a/src/saland/GameRegion.hpp
+++ b/src/saland/GameRegion.hpp
@@ -31,7 +31,7 @@ https://github.com/sago007/saland
 class GameRegion {
 public:
 	GameRegion();
-	void Init(int x, int y);
+	void Init(int x, int y, const std::string& worldName);
 	std::vector<std::shared_ptr<Placeable> > placeables;
 	std::shared_ptr<b2World> physicsBox;
 	void SaveRegion();