Sicko Sanctum

Sicko Sanctum features fast classic FPS combat in horde based surrealist levels. With unlimited upgrades become overpowered and triumph over powerful enemies. Defeat the malevolent Martation Prime or play infinitely, the Sicko Sanctum doubles as a rogue-like and score attack shooter.

At a glance

• Platform: Windows.
• Genres: Action, Free To Play.
• Release date: Apr 6, 2026.
• Steam user reviews: Positive (90% positive).
• Delivered as a Steam library entitlement — activation is handled by Steam.

Minimum

System requirements as published by the developer on Steam.

Activate on Steam

• Open the offer above — it takes you to this game's official Steam store page.
• Buy it there, or if you bought a key elsewhere, open Steam and choose Games → Activate a Product on Steam.
• Enter the product code exactly as it was issued to you.
• The game appears in your Steam library — download and play.

CDKeyCheap does not sell keys. We track and display prices; every purchase happens on the store you click through to.