Nightmare of Decay
Released May 2022
A first-person action horror game set in a nightmarish manor infested with zombies, psychotic cultists, and a horde of other horrors. Utilize an assortment of different weapons in a brutal fight for survival as you try to escape from the Nightmare of Decay.
95% positive · 4,379 reviews
Done
All announced content has been released
High confidence
Done
All announced content has been released
High confidence
Where to buy
Steam $4.99
Can't confirm — worth a look
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Evaluation
Nightmare of Decay launched on May 3, 2022 as a complete, self-contained first-person horror game. In the period immediately following launch, the developer shipped a series of patches focused on balance adjustments, quality-of-life improvements, bug fixes, and community-contributed language translations — all of which are consistent with a developer polishing a finished product rather than building out additional content. The last recorded update was a small bug fix on October 29, 2022. Since that date, there have been no further developer communications, no announced expansions or DLC, and no unreleased content listed on the store. The store description describes the game as a complete experience with no mention of upcoming additions. With no post-launch content cycle beyond maintenance patches and no outstanding commitments, the game launched and remains a finished standalone product.
Evidence
Nightmare of Decay launched on Steam as a complete release with no mention of future content or updates.
Last recorded developer update (v1.16), a small bug fix. No developer communication has occurred after this date.
Media
Details
Developer
Publisher
Checkmaty
Achievements
16
Platform
Windows
Controller
—
Steam Deck
Playable
Players
Single-player
About this game
Nightmare of Decay is a first-person action horror game set in a nightmarish manor.
After going to bed one night you awaken to find yourself trapped in a manor infested with zombies, psychotic cultists, and a horde of other horrors. You must utilize an assortment of different weapons and limited resources in a brutal fight for survival as you try to escape from the nightmare...or die trying.
After going to bed one night you awaken to find yourself trapped in a manor infested with zombies, psychotic cultists, and a horde of other horrors. You must utilize an assortment of different weapons and limited resources in a brutal fight for survival as you try to escape from the nightmare...or die trying.
Explore
Navigate and explore an expansive, multi-level manor filled with deadly horrors.Fight
Fight against a variety of different enemy types including shambling zombies and gun toting cultists.Survive
Limited ammo and resources encourage a more hardcore survival experience.Last evaluated Jun 22, 2026
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