sample level design of a cave exploration game. Pretty basic level – the character exits from the opening in the top left and then continues to the stair case at the top right. However, the character can choose to climb the ladder and excavate minerals from the rocks and to get to the green rock, must first lower the tracks with the lever.

UPDATE:

I fixed the transparent grey backgrounds behind the items such as the rocks and lever. When creating the map on Tiled for some reason it made it look like that as I was grabbing the tiles from a tile set. I then edited it in photoshop. Here is the final image (same used for Game UI)