What this site is for
Risk of Rain 2 has a large and well-maintained data wiki, and it has no shortage of pages written from a single playthrough. What it has less of is material that tells you how confident it is. This codex is built the other way round: every mechanic is attributed, values that shift between patches are marked as such, and anything still being collected says so on the page instead of being filled in with a guess.
That matters most for the parts of the game that are invisible in a normal run — proc coefficients, cooldowns, alternate skills, the exact wording of a penalty. Those are the details that decide whether a build works, and they are the details most guides leave out.
Petrichor V Combat & Biome Recon
High-velocity survivor routing and proc-chain mechanics captured directly across planetary expeditions.
Teleporter Event: Swarm Defense & Boss Engagement
Petrichor V Biomes: Ancient Titan Ruins
Start here
All 20 survivors
Every playable character with origin, unlock method, and a loadout table listing each skill’s slot, cooldown and proc coefficient.
All 220 items
The full passive and equipment list, filterable by rarity, with a planner for the stacks you are aiming at.
Hallowed Concepts
The fourth expansion: two survivors, fourteen Hexes, eleven Hallowed Items, the N’Tormat Curio and the Trials of N’kuhana.
All 20 artifacts
Rule-changing unlocks, where to enter their codes, and a tracker that remembers which ones you have cleared.
Trials of N’kuhana
Pocket realms hung off your run: how to get in, the three Winnowings, and how the shared timer punishes long chains.
Patch 1.21 notes
Hallowed Concepts content, the free Karma system, a new skill for six original survivors, and the balance pass.
The newest expansion
Full breakdown →Hallowed Concepts · 2026-10-08 · $14.99
The cult of N'Kuhana — stolen relics, and power that always charges a price
New survivors
Enforcer and Acolyte
Item types
14 Hexes · 11 Hallowed Items
Ships with
Patch 1.21, free for all players
The codex at a glance
| Collection | Entries | Status |
|---|---|---|
| Survivors | 20 | Profiles with loadout tables; effect prose in progress |
| Items and equipment | 220 | Names, rarity and family complete |
| Artifacts | 20 | List and unlock mechanic complete |
| Environments | 31 | Names and stage numbers; per-stage detail pending |
| Latest patch documented | 1.21 | Compiled from the developer announcement |
Counts are generated from the same data files the pages render, so they cannot drift away from the pages themselves.
Attributed
Anything taken from a developer announcement, patch note or store listing is labelled as confirmed by official sources. Player-sourced material is labelled separately.
Datable
Stacking numbers, spawn weights and drop tables move between patches. Pages that carry them say which patch they describe, so you know when a figure has aged.
Correctable
Every page has a route back to the maintainer. Send a page URL and what you saw, and corrections land in the next update.
Expansions covered
The codex covers the base game and all four expansions. Each collection page notes which release an entry arrived with, because which items and stages can appear in a run follows the expansions you have enabled.
- Base game · 11 survivors
- Survivors of the Void · 2 survivors
- Seekers of the Storm · 3 survivors
- Alloyed Collective · 2 survivors
- Hallowed Concepts · 2 survivors
Official Cinematic & Gameplay Reels
Archived from official Steam releases. Zero third-party tracking or performance overhead.
Launch Gameplay & Overview Reel
Watch official stream on Steam
Risk of Rain 2: 1.0 Full Release Cinematic
Watch official stream on Steam
Action Gameplay & Survivor Dynamics
Watch official stream on Steam