GRAIN ROT
by Beck & Branch Games · 7 Aug, 2026
223 downloads
About the Game
You are a Living Spark surviving inside fragile wooden vessels that splinter, collapse, and catch fire. When your vessel breaks, the Spark escapes. Death is just a change of scenery.
Ride a cursed elevator into shifting underground ruins with your crew. Smash furniture for resources or feed them into the Grinder for gold. If everyone breaks, your loot is lost.
Trolling can become your friend’s demise. Dropkick enemies or “accidentally” launch your ally’s Spark out of their vessel. Block them in a monster-infested corridor or get stuck in the crossfire. Will your group handle the chaos you created yourselves?
The deeper you go, the worse the Rot becomes. Bodies warp. Voices distort. Emotes become…worse. Or possibly better?
The Deep Layers are filled with Corrupted vessels, reacting to sound, movement, and each other in ways that are impossible to predict. Fight. Build. Run. Panic.
When your vessel breaks, you stay in the run as a Spark. Guide your team through the dark and search for another host with a new set of abilities. Force your way back in before you fade out completely.
Everything you haul back rebuilds your Outpost. Unlock interactive furniture, stat upgrades, rescued survivors, and stranger ways to survive the next descent. The stronger the outpost becomes, the deeper you can afford to go.
Go deeper. Extract more. Leave someone behind. Make it back and build together.
Or don’t come back at all.
FEATURES
Possess and swap between fragile wooden vessels
Co-op extraction horror with physics-driven chaos
Tactical carpentry with interactive furniture
Procedurally shifting underground dungeons
Persistent Outpost rebuilding and progression
Rage-bait your friends with cursed emotes
Rescue survivors trapped in the Deep Layers
Body corruption and mutation systems
Questionable cosmetics
Screenshots
11 images
Version Information
Steam Patch Notes
Official update history
- The compass item can now be recalibrated to point towards the Deep Layer grinder.
- Fixed incorrect scrap value for the Vibe Modulator.
- Improved performance of the Vibe Modulator Visual Effect.
- Health and stamina regained from resting on constructs are now percentage based.
- Fixed a bug where you could clip through walls using chairs.
- Fixed a bug where items saved on an uncontrolled character would end up floating in the air.
- Added a new small Vessel named Boing.
- Added 7 new buildable constructs. (3 common, 1 rare, 1 epic, 2 legendary)
- Small Vessels can now carry and hold up to one item.
- Grief protection is now implemented as a setting which can be turned off per player, it hinders players to perform potential harmful actions outside of the Deep Layers.
- Improved password protected server security.
- Added search filter and an icon for password protected servers.
- Ban players are now persistent across sessions.
- Fixed so renaming save files in the OS and copying them to different slots now works correctly.
- Reducing cosmetic spawn count in dungeons from 2 to 1.
- Fixed a bug where carrying multiple Shade Spears could cause them to not block the sun.
- Improved collision of some treasures.
- Improved collision for bunkbed mesh.
- Improved collision for walls in the brimstone citadel biome.
- Fixed collision holes in the Pressure Plate room in Hollow Halls.
- Fixed bug where the battery item did not break when reaching zero durability.
- Fixed a bug where the player could change eyes and badges on small vessels.
- Fixed an issue where glow particles could disappear when too close to the environment.
- Fixed a bug where some actions could not be rebound correctly.
- Fixed a bug where if you had bound the crouch hold action, it could cause the spark move down action to get stuck.
- Network replication improvements for placing new constructs.
- Fixed a bug where items could display the wrong durability for clients.
- Tweaks to Wailer’s attack patterns so it doesn’t use AoE attack immediately when blocked by constructs.
- Added another melee attack for Wailer.
- Fixed bug where spamming New/Load Game could cause issues during the level transition.
- Fixed a bug where new construct notification dots appeared after reloading a save file.
- Fixed a navigation bug in a fall room in Withered Manor.
- Public servers are now available to join via an in-game browser.
- Added more host game settings under the multiplayer options tab.
- Added support for password protected servers.
- The friends only and invite only privacy mode now allows for friends of anyone in the server to join, not just the host.
- Added a new hat that can be found in the Deep Layers.
- Fixed so Quill shouldn’t catch fire on his patrol route outside the Outpost.
- Fixed a bug where a legendary gumball would not give any reward.
- Added security measurements for incoming connection.
- Fixed missing Localization.
- Fixed a bug where you could not join friends when lobby privacy was set to friends.
- Added start/stop follow animation and sound for Little Buddy.
- Fixed an issue where the items owned by a client gets destroyed when they leave the game. They should now either be dropped on the ground or moved to the lost and found crate.
- Fixed bug where the player could not respawn because the area was blocked.
- Fixed a bug where Grain Rot was visible through certain unrepaired ceiling modules.
- Fixed so Vessels can now be on all balconies without taking any fire damage.
- Fixed Mini Plant’s collision so it’s easier to place on shelves.
- Added multiplayer settings for lobby privacy and max player count.
- Added a view lobby menu where you can adjust player mic volume and kick / ban players.
- Fixed a bug where a bunker door in the ancient facilities could not be opened by clients.
- Fixed a bug where the save file could load into a black void.
- Fixed bug where key bindings did not save correctly.
- Added a welcome message for when a new player joins the game.
- Added a hatch above the elevator for people who like to break the physics engine.
- Double fixed a bug where you could not pick up coins or the fuse in some boxes in the deep layers.
- Fixed a bug where you could not load a save file while offline from Steam.
- Fixed a bug where constructs attached to a wall did not correctly apply the attach state after loading a save.
- Fixed a bug where stacked objects could start vibrating indefinitely when disturbed.
- Fixed a bug where a mesh related to a boss in the deep layers could appear at the outpost after a dungeon run.
- Fixed a bug where picking up a mallet caused it to disappear.
- Fixed a bug where the highscore displayed the wrong number.
- Fixed a bug where the rolling boulder trap was invisible to clients.
- Fixed a bug where you could not pick up coins or the fuse in some boxes in the deep layers.
- Tables now appear under the furniture category in the build menu.
- Fixed a bug where performance was worse than expected due to light invalidation.
Current Release
Build 24989637
Uploaded Aug 28, 2026
System Requirements
How to Install
Helden.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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Download GRAIN ROT for PC with a direct link or via torrent. Get the full version of GRAIN ROT for free. GRAIN ROT is a Action released by Beck & Branch Games.