About the Game
You wake up in the depths of Hell, but it isn’t the demons you should fear. Holy angels are descending from the heavens to purge the abyss, and you are their prey. To survive, you must take command of Hell’s denizens and rewrite the laws of nature.
Hell Deck is a dark, twisted roguelike deckbuilder defense game. Here, the battlefield is a living, breathing, and volatile ecosystem where survival is bought with flesh. Force your units into a brutal cycle of predation and sacrifice, engineer a grotesque food chain, and repel the holy onslaught.
"WHY DO YOU DOUBT THIS PARADISE?"

Forget everything you know about good and evil. In this world, angels are the apex predators hunting you down. Lead the demons of the abyss, adapt to the harsh reality of the underworld, and turn the holy invasion into a crimson feast.

Your units don’t just stand in formation—they hunt each other. Master a unique "Ecosystem Deckbuilding" mechanic where power is consolidated through cannibalism. Accidental placements and deliberate sacrifices trigger grotesque biological mutations, turning weak grunts into god-like apex predators.

Space is your most precious resource. On a strictly limited tile grid, every single placement can trigger an uncontrollable chain reaction. Manage your hand, monitor your inventory bag, and orchestrate the perfect biological synergy to decimate hundreds of oncoming enemies at once.

Death is merely part of the experiment. As a mysterious, omniscient voice watches over your failures—promising to "fix you" each time you break—you will unlock permanent upgrades upon returning to the lobby.
Screenshots
6 imagesVersion Information
Steam Patch Notes
Official update history
Hello, Voyagers!
We have rolled hotfix featuring Quality of Life (QoL) improvements and some small bug fixes.
Please see below for the full details.
\[Bug Fixes]
• Gravedigger: Fixed a bug where an infinite interaction occurred.
• The VI (6): Fixed a typo/description error in the card upgrade skill.
• Combination Crash: Fixed an issue where the game crashed when using "Plague Doctor" and "Snow Queen" together.
• Devourer: Re-fixed a gauge-related bug for the "Devourer" elite monster.
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• Pause Feature: Disabled the pause function while the Starter Pack UI is displayed at the start of a game.
• Consumable Item Clicks: Improved click accuracy to prevent accidental misclicks when using consumable items.
• UI/Visibility: Improved the status effect icons (Poison, Fire, Frost) displayed on elite monsters.
• Tutorial: Smoothed out the early gameplay flow for a better onboarding experience.
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• The VI (6): Improved mechanics to allow changing single-target attacks into area-of-effect attacks (AoE +1).
• "The Feast" Blessing: Enemies now revive with 10% HP instead of 20% (20% -> 10%).
If you have any questions, please feel free to leave a comment below or join our official Discord.
Hello, Voyagers!
Thank you for playing OFFMOON's first MoonDay release, Hell Deck. We have rolled out our very first hotfix featuring Quality of Life (QoL) improvements and Chapter 2 balance tweaks.
Please see below for the full details.
Bug Fixes
Game Freeze: Resolved a bug that caused the game to freeze when using certain items.
Elite Monster Fix: Fixed a bug related to the "Devourer" elite monster.
Blessing UI Fix (Ascension Perk): Fixed an issue where the screen was obscure when selecting the "Madness" perk.
Improvements & Balancing
Tutorial Flow: Addressed an issue where the game could be paused during the tutorial to ensure uninterrupted gameplay.
Windowed Mode Fix: Fixed an issue where the game window position would shift unexpectedly in Windowed Mode.
Chapter 2 Balance Adjustment: Rebalanced Chapter 2 to make the progression smoother and more accessible.
Localization Polish: Fixed awkward line breaks and text discrepancies across several languages.
If you have any questions, please feel free to leave a comment below or join our official Discord.
Current Release
Build 25114416
Uploaded Oct 10, 2026
System Requirements
How to Install
Hell Deck.exe to play
Troubleshooting tips
• Run Redist/_CommonRedist installers if game won't start
• Add folder to Windows Defender exclusions
• Run as administrator
Download
Direct link available
Needed when extracting (WinRAR / 7-Zip) — not a site login.
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View AllDownload Hell Deck for PC with a direct link or via torrent. Get the full version of Hell Deck for free. Hell Deck is a Strategy released by OFFMOON Inc..