Keys.gg

Quantum Sleeper

Offers

Trailers & screenshots

1 / 11

About Quantum Sleeper

Quantum Sleeper is a stealth game about investigating a communication blackout at Research Facility G-1-6. As a lone operative, you explore the silent facility to restore contact with its management. If that is not possible, your objective is to retrieve all critical, highly classified research data.

Investigate the facility

You carry standard-issue gear, including a flashlight and the AEGIS Scanner. Switch between normal vision and the scanner view to reveal hidden details, track movement and navigate in complete darkness. Sound and environmental cues can help you avoid detection as you investigate the facility’s secrets.

Stay quiet

You can connect a microphone to the game, adding tension as you try to remain quiet. Something unknown watches from the shadows while you search the facility and work to complete your objectives.

Frequently asked questions

Steam lets publishers create keys to sell in other shops. Once you activate a key, the game is yours to keep, just like a store purchase.

Disclaimer: CD keys have an inherent 1–2% average failure rate. Check the shop terms for buyer protection info. Steam offers no buyer protection for keys bought in other shops and doesn't refund them.

Similar games