RimWorld: Anomaly is a released horror-themed expansion that adds paranormal threats, investigation, entity containment, and a new endgame centered on a machine intelligence. It launched on April 11, 2024, alongside the free 1.5 update; it is not an upcoming expansion. Ludeon’s release announcement
What does RimWorld: Anomaly add?
Anomaly shifts the colony’s troubles beyond familiar survival crises and combat. Its horror scenarios revolve around a dark monolith that awakens a powerful machine intelligence, bringing increasingly strange phenomena to the map. Players investigate those events, survive their effects, capture entities, and study them to gain new capabilities. Ludeon’s official Anomaly page
What new and horrific events are in Anomaly?
The official examples range from threats that stalk or infiltrate a settlement to phenomena that alter how colonists behave. The expansion’s roster includes:
- An invisible hunter that returns at night.
- A vast flesh organism that spreads across the map.
- A mind-controlling parasite that can infiltrate colonists.
- A golden cube that induces obsession.
- Obelisks with unpredictable effects.
- Shambling undead, cultists, fleshbeasts, and machine-like enemies.
These examples give Anomaly a different texture from a straightforward wave of attackers: some dangers invite investigation and containment, while others create paranoia, infestation, or sudden combat.
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- COLONY SURVIVAL: Plan and strategize as you attempt to have the most survivors on the Moon while events that kill your people keep happening.
- LIFE & DEATH: During the game you will be drawing cards, some bad and some good that will determine the fate of your colony. Some will give you an advantage to surviving, while others will kill off some of your colony.
- OUT TO SPACE: Take the trek out to the newly colonized moon, try to outlast the other colonies and control the moon yourselves.
- BE HUMANITIES CROWNING ACHIEVEMENT: Humanity is venturing into the stars, leaving Earth behind to colonize new planets. Be the greatest city of humanities history as you survive the treacherous moon.
- PLAY TIME: Moon Colony Bloodbath is perfect for 1-5 Players, takes 45-90 minutes, and for ages 14+.
How do investigation and containment work?
The central progression loop is to study the phenomena and prepare to confront them. Players can build containment facilities, capture entities, research them, and use what they learn to harness their powers. Anomaly also introduces bioferrite, a resource for experimental weapons and other void-powered tools, as well as psychic rituals that can affect enemies and the world. Ludeon’s official Anomaly page
What is Anomaly’s endgame?
The threats escalate toward a world overtaken by darkness and a final confrontation with the machine god, according to Ludeon’s description. The expansion also adds new music by RimWorld composer Alistair Lindsay; Ludeon’s release announcement specifies 11 soundtrack tracks. Ludeon’s release announcement
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- Rebuild civilization with a Tableau of specialized buildings and a large pool of resources
- Dynamic dice-as-resources mechanic creates opportunities for constantly shifting tactical decisions, while avoiding random and unexpected impacts on strategic play
- 28 variable building card types in the box, with only 7 of them used, adds enormous replay ability
- 42 dice include stable resources that can be stored between player turns, and unstable resources that must be used Each turn
- Pa your buildings for enhanced capabilities and more vs
Do you need RimWorld to play Anomaly?
Yes. Anomaly is an expansion pack, not a standalone game, and requires the base game RimWorld. Ludeon’s product page states: “This is an expansion pack for RimWorld. You’ll need RimWorld in order to play.” Official product page
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Anomaly released on April 11, 2024, alongside the free RimWorld 1.5 update. At the time of research on October 8, 2026, Ludeon’s product page listed the digital expansion at $24.99 USD, with access through Steam or a DRM-free purchase. Storefront prices and availability can change, so check the official page for the current listing. Official Anomaly page
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- The Winner Is The Player With The Most Teeth Remaining At The End Of The Game
- A Life Journey Game For 2-6 Fun-Loving Players, Age 13+
- Playing Time 1-2 Hours
- Easy To Start, Hilarious To Play, Hard To Forget
At launch, Ludeon said unmodded 1.4 saves would load in 1.5 and explained that players who wanted to remain on 1.4 could choose the named Steam beta branch. The studio also warned at the time that some mods had not yet been updated for 1.5. That was a release-era warning, not a claim about present-day compatibility; mod support depends on the game version and the individual mod. Ludeon’s release announcement
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- Colonialism - EN
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- WORD-BUILDING MEET TRIVIA: A unique educational board game for those who think they know it all! Players discover amazing facts about the world while building their own word colonies. It's the perfect blend of trivia and vocabulary — ideal for board games for kids 8–12, teens, and adults alike.
- +100 NEW CARDS: Discover New Questions from Your Favorite Topics. This game expansion includes a set of new cards with fun and fascinating questions about the world around you. Now you can pick Question Cards based on a topic you love! Answer general knowledge questions, collect Letter Cards, and build powerful word colonies! Easy to learn with our quick 3-minute video guide — perfect board games for family night.
- +1 PAWN for an EXTRA PLAYER: No More Friends on the Sidelines. This expansion includes 1 additional pawn and a set of four A-B-C-D answer cards, allowing you to add one EXTRA PLAYER to the game. Ignite curiosity and connection with an interactive family board game that brings everyone to the table. It's one of the best family games for kids and adults to enjoy together — meaningful fun for every generation.
- THIS IS AN EXPANSION and NOT a stand-alone game! Make sure you also have the Word Colony Original Base Game. Discover available expansions and bring even more friends and family into the game. Great for fans of word games and educational games with strategy.
- LIMITED EDITION – CERTIFICATE OF AUTHENTICITY: Only the first 3,000 base games include a serialized and signed Certificate of Authenticity from the creator. This collector's edition grants VIP Colony status with exclusive perks. Learn more on our official website and become part of the Word Colony legacy.
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