Metal Faith

In the future world, humans have moved underground, leaving only a part of the surface intelligent robots to maintain industrial facilities. Because of the harsh environment, if a robot breaks down on the surface, it is likely to be abandoned. If these robots still have battery, they can become runaway robots, executing chaotic code, wandering around...

It's a single player game, centered around a simple story about salvation. Based on the clues collected, you need to unlock different missions and maps, solve puzzles, and remove harassing enemies.