GRAIN ROT
Complete Guide
Deep Layers strategy, outpost upgrades, Spark survival, items, Rot cures, and co-op tips. Extract alive. Rebuild everything. Go deeper.
THE DESCENT STARTS HERE
What is GRAIN ROT?
GRAIN ROT is a co-op extraction horror game set in a scorched wasteland where everything burns. You descend into shifting ruins, rip apart furniture for loot, and race back before the Corrupted close in.
Your wooden body is only a vessel. When it breaks, the Spark inside can escape and possess something new — if you can find it before the darkness takes you.
View on Steam →FIELD MANUAL
All Guides
Everything you need to survive the descent, upgrade your shelter, and bring every teammate home.
Beginner Guide
Start HereLearn the extraction loop, essential controls, and the safest route through your first descent.
View guide →Deep Layers
ExplorationRead the cursed elevator, navigate shifting ruins, and bring your haul back alive.
View guide →Outpost Upgrades
ProgressionRepair rooms, place constructs, and spend every Scrap where it matters most.
View guide →Spark & Vessels
SurvivalLeave a broken body, possess a new vessel, and keep your Spark alive in the dark.
View guide →Rot Guide
Status EffectUnderstand Rot buildup, warning signs, and the risky cure waiting in the sunlight.
View guide →Items & Tools
GearUse mallets, compasses, repair glue, weapons, and utility items without wasting them.
View guide →BEFORE YOU DESCEND
Top Tips for New Players
The most important things to know before your first serious run.
Keep an Exit Fund
Feed the cursed elevator before using the wrecker. Your safest run is the one you can leave immediately.
Mark the Elevator
Carry a compass or memorize landmarks. The Deep Layers become confusing when the Corrupted start chasing you.
Scout Spare Vessels
A broken body is survivable only if your Spark can reach another vessel before fading in the dark.
Respect the Sun
Sunlight clears Rot but hurts wooden bodies. Cure yourself deliberately, never in the middle of a desperate escape.
Upgrade Your Weakest Room
Repair and furnish the room tied to the stat that ends most of your runs: health, stamina, attack, or shop quality.
Protect Rare Tools
If you carry a weapon, compass, or repair glue, prioritize extraction over one more pile of Scrap.
QUICK ANSWERS
Frequently Asked Questions
What is GRAIN ROT?+
GRAIN ROT is a cooperative extraction horror game about wooden vessels, a living Spark, destructive scavenging, and rebuilding a ruined outpost.
How many players can play GRAIN ROT?+
The game supports solo play and cooperative expeditions for up to four players.
What happens when my vessel breaks?+
Your Spark escapes and can possess another suitable vessel. It is a second chance, but you still need to find a body quickly.
How do I remove Rot?+
Stand in direct sunlight to clear Rot. Wooden vessels burn there, so manage your timing and health carefully.
How does the cursed elevator work?+
It takes the team into a randomized Deep Layer. You must gather enough Gold to power the return trip and extract your loot.
Is this an official website?+
No. This is an independent fan-made guide and is not affiliated with the game’s developers.
THE ELEVATOR IS WAITING
Ready to Survive the Deep Layers?
Start with the complete beginner route, then master your Spark, your shelter, and every dangerous layer below.
Beginner GuideAll Guides