Dere .exe - Please don't play this game. It's a well-known game, and the developers don't recommend playing it if you're having a nervous breakdown. This happened spontaneously due to a memory leak. Don't ask why, we don't know exactly. But if you decide to play, be patient and try. You'll replay it again and again. There are several levels, but you'll have to put in a lot of effort to reach the final one.