I just finished my Ludum Dare entry: Maze Monster.
The game is written in C++ with SFML and TGUI, the graphics were created with GIMP and the few sound effects were generated with sfxr.

You play a monster that survives on energy orbs. Without these orbs you will stop emitting light and die. The goal of the game is to collect all the energy orbs without dying.

You also have to watch out for the humans. They think you are a dangerous monster and they will come after you and try to kill you when they see you.

The maze is generated randomly every time you play. In the menu you will be able to change the default settings and choose the size of the maze, your speed, the speed of the humans, …
But even without changing any settings each time the maze will be completely different.