GRAIN ROT Wiki, Guides & Tools
Co-op horror extraction guides — every fact labeled Official or Community.
Three things other GRAIN ROT sites get wrong
You can check every one of these yourself. That is the point.
“Steam Deck: pending review”
Valve's compatibility endpoint returns no rating at all. Not pending, not unsupported — untested.
“Here are the 35 achievements”
The game has no Steam achievements. Three Valve data sources agree. Every list published for it was invented.
“No public matchmaking”
Patch 1.07 added a public server browser on 12 August. Guides written in release week are out of date.
- Official
- traces to Valve, Steam or the developers — quoted where the wording matters
- Community
- players report it, nobody has confirmed it
Start here
Beginner guide
The loop, the five things that matter early, and the mistake that costs a haul.
How to play
The systems underneath — stamina, the dropkick, what room upgrades give you.
Co-op guide
Filling a lobby since patch 1.07, host controls, and who should carry the haul.
Scrap or grind?
No, you should not smash everything. The glint decides what leaves intact.
Mechanics
Spark & possession
Leaving your body is the stealth system. How the timer works, and how players game it.
Deep Layers
Where every run happens — and how little of it has ever been documented.
Outpost upgrades
Room upgrades are stats, not decoration. Who lives at base, and what they never told us.
Rot Sickness
It is not a real mechanic. Here is what the phrase is actually reaching for.
Stuck on something
Floor 2 won't open
Quest progression, then burn the Grain Rot off it. And why floor 3 stays shut.
Second floor key
There isn't one. What actually gates the floor, and what waits up there.
Multiplayer problems
Most first-week co-op bugs already have official fixes. Match symptom to patch.
Corrupted Elite
Level 5, a portal, and an honest list of what nobody has worked out yet.
Database
Enemies
The Corrupted is the only official name. Every other one players made up.
Weapons
Four weapons, no published stats, and players who disagree with each other.
Achievements
There are none. Every achievement list published for this game was invented.
Loot value database
The glint tiers — and why the item table is empty on purpose.
Before you buy
Price and value
What it costs, the content-length complaint, and what the roadmap does to it.
Steam Deck
Valve has not rated it. That is not the same as unsupported.
How many players
One to four, and how public lobbies changed on 12 August.
System requirements
A ten-year-old GPU clears the floor. Reading between the two spec columns.
Beyond the base game
Roadmap
A new vessel within the month, Deep Layers Update in September, third floor in October.
Patch notes
Every official update, straight from Steam, each linking back to its post.
Twitch Drops
Every campaign, with the rewards, watch times and dates the developers published.
Install mods
Thunderstore and unreal-shimloader — plus how small the mod scene really is.
The launch trailer
IGN's exclusive cut — the only trailer whose channel and figures we were able to verify. Embedded from YouTube; we do not host it.