When directly editing the LUA script of a map if you don't use the quotes around the model type, the game will crash, and will continue to crash if you attempt to load the map via console or by walking to it via voidmap. eg: *Correct* Model = LoadModel("templemap/tile_diamond_15x15x1.ms3d","Walkable"); *Game crasher* Model = LoadModel("templemap/tile_diamond_15x15x1.ms3d",Walkable);