A young boy is out doing his daily jogging in the forest when suddenly he steps on a hidden trap and falls headlong down a hole and passes out. When he wakes up two hours later he finds himself in an abandoned well. Now he has to find his way out again.

Project Black Sun is an explorable platformer inspired by classics of the genre like Super Metroid and Castlevania. To find a way out from the mines the player has to find keys to unlock doors, gain new abilities to reach otherwise unreachable places and defend himself against the creatures that try to kill him.