No revenue estimate for PSN — its rating/review counts don't calibrate to sales the way Steam's do. Reviews and prices only.

A Prison Digging Game

You are in prison and want to escape. To do so, you can only dig a hole. Luckily, you have a map in hand. Read it carefully and use your digging power to find your way to freedom. Look for fossils, pipelines, and antique objects to locate yourself on the map.