Global and rising
Pollution
The planet is contaminated, and every map has its own pollution level. The higher it gets, the faster soil, animals and colonists die.
Half an hour before the starting shot, at 1:30 pm CEST, we explain the new features live on Twitch.
Saturday, 3 October 2026 · 2:00 pm CEST
One secret map, eight hours on Scylla.
Hundreds of colonies start at the same moment on the same map, and after 8 hours the one with the highest colony wealth wins. All you need is the Seed of the Month mod.
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Days
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Hours
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Minutes
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Seconds
- Entry fee
- Free
- Show up and play
- No pre-registration
- Scoring window
- 8 hours
- Mod and site
- DE · EN · FR
Understood in 60 seconds
Never heard of the Rimionship?
Three answers are all it takes. Further down you will find everything else you are likely to be interested in.
What happens there?
All participants start on the same day, at the same time, on the same map, which stays secret until then, with the same scenario. The mod connects your game to our server: leaderboard, milestones and the casters' broadcast all run live while you play.
How long does it take?
You get eight hours of real playing time. Pausing, saving and continuing later is allowed. You may start over at any time. Only your current run is ever scored.
How do you win?
The overall ranking is decided by how much your colony is worth at the end. Alongside that there are milestones in several categories. Whoever collects the most points there wins that category.
Take part
Join in four steps
A one-time setup of about five minutes. On tournament day you only have to start RimWorld.
- 1
Own RimWorld
The base game on Steam is enough. You do not need any DLC.
RimWorld on Steam → - 2
Subscribe to the mod
Subscribe to „Seed of the Month“ on the Steam Workshop, plus Harmony. Both are free and mandatory.
Open the Workshop item → - 3
Link your Twitch account
Log in with Twitch here on the site, then click „Register“ in RimWorld's main menu. That pairs the game with your account.
Log in with Twitch → - 4
Play & stream
The tournament shows up in the main menu, and the “Play now” button is unlocked only at the starting shot. Streaming your RimWorld on Twitch for the entire Rimionship, with your VODs enabled, is mandatory.
The rules in short →
How do you know everything is set up?
The mod tells you in the main menu: “Server connected”, “Mods OK” and “This run will be scored.” If it says “not scored” or “unranked” anywhere, or your highscore is shown in red, something is wrong with your login, your mod list or your save.
Mod list
Which mods are allowed?
The server gives you the list, and in-game you can manage all your mods with ease. Here are the allowed mods to read up on.
Rimionship 2026
Mandatory: without these your run does not count 3
- Harmony brrainz.
harmony Workshop - ludeon.
rimworld no Workshop entry - Seed of the Month rimionship.
seedofthemonth Workshop
Optional: allowed, pick what you like 48
- [CAT] Show Hair With Hats or Hide All Hats cat2002.
showhair Workshop - [GMT] TicksPerSecond 1.5 grizzlemethis.
tickspersecond. rw Workshop - Animal Variety Coats cucumpear.
azrael. varietycoats Workshop - HugsLib unlimitedhugs.
hugslib Workshop - Better Workbench Management falconne.
bwm Workshop - Bionic icons automatic.
bionicicons Workshop - Camera+ brrainz.
cameraplus Workshop - Pawn Badge Fan Fork [Adopted] saucypigeon.
pawnbadge Workshop - CM Color Coded Mood Bar [1.1+] crashm.
colorcodedmoodbar. 11 Workshop - Colorblind Friendly Charts kaptainukavern878.
colorblindhfriendlyhcharts Workshop - Colorblind Mod for Joh - Fertility Colors naka.
colorblindjoh Workshop - Silent Doors (Continued) mlie.
silentdoors Workshop - Tainted Renaming divinorium.
taintedrenaming Workshop - Recipe icons (Continued) mlie.
recipeicons Workshop - Show Weapon Tallies kathanon.
showweapontallies Workshop - Weapon and Apparel Quality Indicators carnysenpai.
weaponqualityindicators Workshop - Visible Raid Points visibleraidpoints.
1trickpwnyta Workshop - Twitch Chat heye.
twitchchat Workshop - Colorblind Minerals tiagocc0.
colorblindminerals Workshop - Dubs Mint Minimap dubwise.
dubsmintminimap Workshop - Dubs Mint Menus dubwise.
dubsmintmenus Workshop - RimHUD jaxe.
rimhud Workshop - RimHUD - Deutsch erdnussbrot.
rimhudgerman Workshop - RPG Style Inventory Revamped sandy.
rpgstyleinventory. avilmask. revamped Workshop - Quick Area hellrevenger.
quickarea Workshop - DDI - Deep Drill Indicator georodin.
deepdrillindicator Workshop - Progress Renderer neptimus7.
progressrenderer Workshop - DragSelect telardo.
dragselect Workshop - P-Music peppsen.
pmusic Workshop - Numbers mehni.
numbers Workshop - Fahrenheit and Celsius kosaro.
fahrenheitandcelsius Workshop - MAZ Mass Assign Zone wazz.
ui. maz Workshop - Follow Me Smoothly! fluffy.
followme Workshop - Heat Map (Continued) syrus.
heatmap Workshop - Max Buy, Max Sell leoltron.
maxbuymaxsell Workshop - Interaction Bubbles jaxe.
bubbles Workshop - Level Up! krafs.
levelup Workshop - Vanilla Expanded Framework oskarpotocki.
vanillafactionsexpanded. core Workshop - Vanilla Textures Expanded - Variations vanillaexpanded.
vtexvariations Workshop - Music Manager (Continued) zal.
musicmanager Workshop - Performance Optimizer taranchuk.
performanceoptimizer Workshop - Planning Extended scherub.
planningextended Workshop - Area Unlocker (Continued) mlie.
areaunlocker Workshop - More Planning (Continued) mlie.
moreplanning Workshop - Quality Colors (Continued) dawnsglow.
qualcolor Workshop - Better Message Placement (Continued) mlie.
bettermessageplacement Workshop - RandomPlus mastertea.
randomplus Workshop - No Time Change Sounds rhadamant.
notimechangesounds Workshop
The load order is only a suggestion; a different order never affects the scoring.
Season 2026 · Project Scylla
This time the air is the enemy
Scylla is a contaminated planet: a bio-chemical weapon tore its ecosystem apart, and the pollution keeps rising every day. That is not just lore but the central mechanic of the Rimionship 2026.
Trade
Skyrmions and Etophasios
An orbital trading faction with an agenda of its own. It accepts one currency only: skyrmions, taken from your attackers. In return you get filters, masks, fertiliser, pumps and plenty more!
Your protection
Mask and filter
Your colonists wear masks with replaceable filter cartridges. A loaded mask protects completely, an empty one not at all. It blinks yellow before the filter runs out, and red once it is too late.
Your counterattack
Yperite pump
The pump cleans the air around it, protects everyone inside its zone and lets the soil recover. But only outdoors and only with power. The moment it stops, the pollution returns.
Neighbours
Four factions
Hekaten: peaceful mutants, but sceptical. Klytiaden: fanatics who sabotage every attempt at cleansing. Tyrsener: space pirates out for loot. And the Etophasios: friendly, at least on the surface.
Farming
Soil and weather
Pollution eats away the fertility of your fields; fertiliser pushes back. Past a certain pollution level, tornadoes join in.
Scoring
How your place comes about
Two rankings side by side. You see both live in the HUD while you play.
Overall ranking: colony wealth decides
Colony wealth is RimWorld's own wealth value for your colony: buildings, gear, supplies, colonists. Whoever has the highest at the end wins the Rimionship 2026.
Colony wealth → Place in the overall ranking
Milestones: different categories as an extra incentive
Want a little extra incentive? Or would you rather work towards bonus goals than colony wealth? Then you can collect points in different categories with the milestones.
If two participants end a category on the same number of points, colony wealth decides who ranks higher.
Milestone points → Winner of the category
Leaderboard
| Place | Player | Colony wealth |
|---|---|---|
| 1 | AdamVsEverything | 420,315 |
| 2 | JuraNotAlone | 216,018 |
| 3 | edopeh | 213,643 |
| 4 | MisterPaet | 204,180 |
| 5 | Tiduin | 197,696 |
Publicly visible are place, display name, points and colony wealth. Nothing else.
Milestone points count per run: start over and they are back at zero. The same goes for colony wealth, which dies with the old colony.
The rules in short
What matters before you start
Everything in full is in the rulebook. These six points are the ones people actually trip over.
This is allowed
Pause, save, continue
You may interrupt your game at any time. On a manual save the mod sends you back to the main menu. The save stays scored, you simply load it again later.
Starting over is allowed
Lost your colony? Start a new run while the tournament is still running. Only the current run is scored; milestone points you already earned expire.
The full rulebook and the terms of participation for Rimionship 2026 will appear here before the tournament.
Privacy noticeThis costs you the scoring
No reloading within a running run
Loading an older save to undo a raid is not allowed. The mod detects it and marks that save as unranked. It stays playable, but it no longer counts.
Only the prescribed mod list
The server prescribes mandatory and permitted mods. If a mandatory mod is missing or a forbidden one is active, your run is not scored. The mod list window in-game sorts that out for you.
No cheats, no exploits
Cheats, deliberate abuse of bugs, manipulated results and unsporting behaviour lead to a warning, loss of the result or exclusion. Known exploits are listed on Discord.
A server connection is required
Without a connection the mod transmits no data and your result is not scored. It shows the status permanently in the main menu.
On tournament day
Be there live, even without playing
The Rimionship is a spectator event. All day long there is commentary, reactions and collective suffering. You do not have to lose a colony of your own for it.
The cast on Twitch
Two casts accompany the tournament day, one in German and one in English. The cameras jump to whichever colony is currently exploding.
Discord
All year round: help with the setup, rule questions and everything around the event and the Seed of the Month.
All year round: Seed of the Month
The same mod runs a monthly „Seed of the Month“. That is where you learn the mod and the procedure. What awaits you on Scylla on tournament day stays secret until then.
Songbattle playlist
During the tournament the music of the Rimionship Songbattle plays instead of the game's own, starting with the winning track. It can be switched off in the mod options.
FAQ
Frequent questions
Does taking part cost anything?
No. No entry fee, no starting fee. All you need is RimWorld and the free mod.
Do I have to register beforehand?
No, there is no registration form. You link your Twitch account once and play on tournament day. That is the participation.
Do I need the DLCs?
No, the base game is enough. Which mods are mandatory and which are permitted is prescribed by the tournament server, right in the game.
I am new to RimWorld. Is this for me?
Yes. A large part of the field does not play to win but to survive and to share the day. Taking part is worth it without any prospect of first place.
What happens if my colony is wiped out?
You can start a new run immediately while the tournament is still running. Your old colony wealth and your milestone points expire with it.
Can I stop in between and continue later?
Yes. Saving and pausing is explicitly allowed. Only reloading an older save within a running run is not.
Which of my data is public?
The leaderboard shows display name, place, points and colony wealth. Nothing else.
Do I have to stream?
Yes. For the entire Rimionship you have to stream your RimWorld on Twitch. You do not need to have a camera or microphone turned on, though. That way we can show you in the cast and also make sure no rules are broken. You also need to have your VODs enabled!
Is there anything to win?
No prizes and no prize money. It is about your place in the leaderboard, about the shared day, and about the stories told on Discord afterwards.
Ready for Scylla?
Set it up once, then simply start RimWorld on 3 October.