A horror-tinged thriller with a mix of mystery, dark humor and a sinister setting.

Inside is a beautiful bleak dystopian puzzler. Where you play a young nameless boy navigating a perilous world, and carelessness inevitably ends in grim, sudden death. To offer some respite, there are smart puzzles to solve along the way, but a sense of doom pervades.

The game is dark, with color used sparingly to highlight parts of the environment, and mostly silent, with occasional musical cues. At various points in the game, the boy may discover hidden rooms containing glowing orbs. If all the orbs are deactivated during a playthrough, the player unlocks the game's alternate ending.