You have been cast into the zindan of the zordar, doomed to forget and be forgotten. But there is something you seek, and far above you a sliver of sky still shines down. Can you beat the obstacles and climb all the way back to the open sky? And what use will you find for Whisper, the strange shadow that lurks by your feet?

A Sliver of Sky is a turn-based roguelike where enemies can only be defeated by stunning them, grabbing them, and throwing down a deep chasm at the centre of each level. You must move and position yourself carefully to defeat enemies and avoid getting thrown down the chasm yourself. You can also switch control to a shadow who follows you, aids you by weakening enemies, and comments on your progress.

Though the game progression always resets on death, some elements of the story are told across multiple runs.