Dummy game/test environment

Hello, can anyone tell me if it is possible to create a testbench for a game so you can test each tile (region) on his own. What i want to do is create a dummy game so i can for each tile (region) replace/integrate the landscape easy.
Thx for your time,

i use libload for this and for loading.

1 blend as main blend, all scenes, scripts, player, etc inside. This .blend loads in the (part of)levels.