RimWorld Expansion Keys for Steam

RimWorld: expansions for an endless colony story

RimWorld by Ludeon Studios and Tynan Sylvester isn't just a colony sim — it's a story-generating machine. Out of early access since October 17, 2018, it still sits among the top-rated games on Steam. You guide a handful of survivors crash-landed on a wild frontier planet: each pawn has their own traits, phobias, skills and relationships, while an AI storyteller (Cassandra, Phoebe or Randy) conducts the chaos — pirate raids, plague, mechanoid drops, a solar flare in the dead of winter. This page lists Steam keys for RimWorld expansions. Important: they layer onto the base game and won't launch without it.

Royalty — the Empire, psycasting and titles

Royalty launched on February 24, 2020 and brings the Empire to the planet — a faction with orbital stations and a strict hierarchy. You earn royal titles, gain psychic powers and amplifier robes, fight off mechanoid clusters and host noble guests with their demands. It adds reputation quests, fresh music and a whole new path of progression through diplomacy and status, not just walls and turrets.

Ideology — what your colony believes

Ideology (July 20, 2021) gives your colony its own belief system, built from memes: cannibalism, tree-worship, tech rejection, raiding or pacifism. You get rituals, social roles (Moralist, Priest), relics, slavery and an entirely new ending — the Archonexus. Every run plays differently because your colonists' morality is now mechanics, not just flavor.

Anomaly — RimWorld turns to horror

Anomaly released on April 11, 2024 and bends the game toward cosmic horror. A monolith rises at the heart of your map, leaking darkness: fleshbeasts, faceless entities and nightmarish transformations of your own pawns. You build containment cells, run dark research, investigate anomalies and can pursue a dedicated story ending. It's the most atmospheric and unsettling entry in the lineup.

Which key to pick and what's inside

• Royalty — the Empire, psychic powers, royal quests and mechanoid clusters.
• Ideology — an ideology builder, rituals, relics, slavery and the Archonexus ending.
• Anomaly — a horror campaign: monsters, entities, containment and dark research.

The expansions are independent and combine within a single colony — take one, or stack them all for the richest possible run. Biotech, a separate expansion about children and mechanitors, isn't listed on this page.

How to activate the key

Open Steam, go to the "Games" menu, choose "Activate a Product on Steam", enter the code you received — the expansion lands in your library next to base RimWorld. The key is global and activates in any region without a VPN. The one condition: base RimWorld must already be on the account, otherwise the DLC has nothing to attach to.

Why RimWorld never lets go

The magic of RimWorld is that it doesn't script a story — it grows one. The colonist who hauled corpses for a month and snapped into cannibalism, the sniper who lost a leg in a raid and became your stockpile keeper, the tamed warg that died covering a retreat — these are your own narratives, ones no one else has ever had. The expansions amplify the effect: Royalty adds drama of status and betrayal, Ideology makes colony morality alive and conflicted, and Anomaly throws in horror that literally drives pawns insane. The more systems you stack, the denser and more unpredictable each run becomes.

Common questions before buying

"Can I start with the expansions without the base?" — no, you need RimWorld itself first. "Will the DLC break my saves?" — new systems hook in cleanly, but it's best to enable an expansion on a fresh colony to feel it from scratch. "Are they mod-compatible?" — yes, RimWorld is famous for its huge Steam Workshop, and the official expansions play nicely with most popular mods. "Do I need to buy everything at once?" — no, grab what speaks to you: Royalty for progression and quests, Ideology for roleplay depth, Anomaly for horror. You can add the rest whenever you like.

If you love management sims

RimWorld hooks players who love management sims and emergent stories where every run tells something of its own. Check out Prison Architect, Oxygen Not Included and Stardew Valley too — a kindred genre about building, surviving and caring for a small world where small decisions grow into big stories.

💚 Same game — another format

On the same topic we also have: RimWorld as a Steam gift.