RimWorld

RimWorld introduced ancient and heavy bridges on June 8, 2026, which are immune to explosion damage and help prevent wealth spikes when landing on ruins over water. Additionally, embryos became forbiddable, adding a new layer of control for players.

• New Content:
  • Ancient bridges and heavy bridges added, preventing large wealth spikes when landing on maps with ruins over water.
  • Embryos became forbiddable, allowing players to manage them more effectively.

• Balance Change:
  • Heavy bridges were made immune to explosion damage, enhancing their strategic value in gameplay.

• UI/UX Update:
  • Player creative content received an update, improving the user experience for those creating custom content.

• Visuals:
  • Royalty preview images were updated, enhancing visual representation for players.

RimWorld - Odyssey launched on July 11, 2025, introducing a wealth of new gameplay mechanics and biomes that significantly expanded the game. The expansion features the introduction of gravships, allowing players to build mobile colonies that can travel across the planet and into orbit, along with over 40 new animals and a unique weapon system that enhances gameplay variety.

• New Gameplay Mechanics: Players can now build and upgrade gravships, explore new biomes like glowforests and lava fields, and engage in quests that involve hunting and raiding. A mechhive endgame feature challenges players to confront mechanoid production with a powerful AI core.
  • Introduction of fishing as a reliable food source.
  • New dynamic terrain and weather systems that impact gameplay.
  • Flying animals added, improving mobility for certain species.
• Expanded Content: The expansion brought new quests and a landmarks system that adds variety to maps, including explorable underground areas and unique challenges.
  • Players can discover legendary creatures through quests, such as the alpha thrumbo and hive queen.
  • Enhanced orbital exploration mechanics allow players to loot orbital wrecks and satellites.

• Performance Improvements: The free update 1.6 included massive performance enhancements, particularly for late-game colonies, optimizing multithreaded pathfinding and lighting.

• Quality of Life Changes: A new gravship launch interface simplified the process of boarding animals and mechanoids, while various improvements across caravans, building, and UI were implemented.

• Balance Changes: Adjustments were made to the Starjack xenotype, improving performance in space, alongside various rebalancing efforts across gameplay mechanics.

The Anomaly Expansion launched on April 11, 2024, introducing a host of new content and mechanics to RimWorld. This horror-themed expansion features monstrous threats, including ghouls and cultists, alongside new rituals and gameplay systems. Players can now harness bioferrite for crafting and augmenting their ghouls, adding depth to the gameplay experience.

• New Content: The Anomaly expansion added numerous elements:
  • Ghouls, aggressive melee combatants created from bioferrite.
  • Cultists who perform attacks and rituals to summon threats.
  • New individual and regional cult rituals with various effects.
  • Revenants, psychically-invisible hunters that can hypnotize colonists.
  • Fleshbeasts and the fleshmass heart, new fleshy threats to encounter.
• Gameplay Mechanics: Significant new systems were introduced:
  • Mechanics for capturing and containing anomalous entities.
  • New strategies for clearing flesh infestations.
  • A crawling mechanic for downed characters, affecting recovery scenarios.
• Quality of Life Improvements: Players received several enhancements:
  • A new search function for easier navigation of items and structures.
  • Options to create new colonists after the original ones have died.
  • Compatibility with unmodded savegames from the previous version.
• Seasonal Event: The RimWorld 11th Birthday Community Event occurred on October 8, 2024, celebrating the game's anniversary with community activities.
• Balance Changes: Adjustments were made to various elements:
  • Revenants had their health slightly reduced.
  • Smoke launchers and other items no longer possess qualities, streamlining gameplay.

Biotech Expansion launched on October 21, 2022, introducing new xenotypes, factions, and mechanics focused on child-rearing and genetic modification. This major update also integrated new Ideology precepts, enhancing gameplay depth. RimWorld Update 1.4 followed, introducing various changes and enhancements.

• New Factions: Biotech added a variety of new factions including Pigskins, Impids, and Sanguophages, each with unique traits.
  • Xenohumans: Players can create and interact with new xenohumans featuring distinct abilities.
• Gameplay Mechanics: New mechanics were introduced for Sanguophages, allowing them to conceal their powers while requiring human blood to sustain abilities.
  • Child Mechanics: Players could now rescue hostile faction babies and put unadopted babies in cribs.
  • Gene-Modding Adjustments: The economy around gene-modding was loosened, making it more accessible with increased options.
• Cross-Expansion Integration: New Ideology precepts linked to the Biotech expansion included beliefs about child labor and mechanoid labor, broadening player choices.
• Balance Changes: The explosive radius of tox shells was reduced, and the ageless gene now stops aging at 18.5, refining character progression.

RimWorld - Biotech Expansion launched on October 5, 2022, introducing significant new gameplay features. This expansion brought the ability to control mechanoids through a new implant called mechlink, allowing players to engage with mechanoid gestation processes and command new labor and combat mechanoids.

• New Mechanitor Role: Players can now become a mechanitor to control mechanoids directly, enhancing strategic gameplay and introducing the new Mechanoid Gestation Process, where mechanoids are gestated in a mechanite-rich solution.
  • Labor Mechanoids: New types such as paramedic mechs, agrihands, and constructoids expanded player options.
  • Combat Mechanoids: Introduced new combat mechanoids, including Militor, Scorcher, and Centurion, each offering unique abilities.
• Gene Modding and Family Mechanics: The game added gene modding features, allowing players to create xenohumans with distinct traits, and introduced family dynamics, enabling players to raise babies and children, complete with childhood development mechanics.

• Pollution Mechanics: New gameplay challenges arose with the introduction of pollution mechanics from mechanoid production, requiring players to manage environmental impacts.

• Balance Changes: Significant adjustments were made, including revised raid strategies for mechanoids and changes to the biosculpter mechanics, enhancing gameplay balance.

• Steam Deck Support: The game achieved full support for Steam Deck, improving controls and UI specifically for the platform, making it more accessible for players on the go.

RimWorld - Ideology launched on July 20, 2021, introducing a wealth of new content centered around belief systems, rituals, and social roles. This expansion significantly changed gameplay dynamics, allowing players to assign formal social roles to colonists and perform various rituals that impact morale and storytelling. The RimWorld version 1.3 update also released alongside the expansion, enhancing gameplay with several new features.

• Ideology Expansion Released: The expansion added a focus on beliefs, social roles, and rituals, enriching the storytelling aspect of the game.
  • New Social Roles: Players can assign roles like Moral Guides and Leaders, which provide unique abilities and buffs.
  • Variety of Rituals: New rituals, including funerals and public executions, allow for deeper engagement with colony dynamics.
• New Gameplay Mechanics: Players can utilize a new Pens-and-Fences System for animal management, improving productivity with focused roles.
  • Dryad Specializations: Introduced dryads that can be specialized for combat or utility roles, enhancing colony capabilities.
  • Multi-Ideology Support: Colonists can now participate in rituals of other ideologies, improving recruitment and morale.
• Balance Changes: The update rebalanced the Social Ideo Thought Opinion Offsets, enhancing multi-ideo colony viability and adjusting various gameplay mechanics related to ideologies and social interactions.
• Quality of Life Improvements: The version 1.3 update brought savegame compatibility with previous versions, ensuring a smooth transition for players updating their game.

RimWorld - Royalty expansion launched on February 24, 2020, marking a significant content addition that introduced new noble systems, psychic powers, mechanoid combat, and quests. This update also brought forth a custom playstyle system and several new psycasts, further enhancing gameplay depth.

• Royalty Expansion: Released on February 24, 2020, this expansion introduced nobles, their associated mechanics, psychic powers, and a variety of new quests.
• New Psycasts: Multiple new psycasts were added, including Neural Heat Dump, Waterskip, and Neuroquake, expanding strategic options.
• Custom Playstyle System: Launched on August 10, 2020, this system allowed players to adjust threat scaling and crop yields, tailoring their gameplay experience.
  • New Major Quests: Included quests like Shuttle Defense and Refugee Hospitality added on the same date.
  • Utility Gear System: Also introduced on August 10, this system allowed players to equip wearable items with unique abilities.
• Improved Quest Generation: Updated on April 19, 2020, this feature enhanced the balance and challenge of quests, ensuring better rewards for players.
• Psycaster Progression Changes: On May 27, 2020, the progression mechanics for psycasters were revamped to utilize psylink neuroformers, enhancing gameplay balance.

RimWorld 1.0 launched on October 17, 2018, marking the conclusion of its development phase. This major release introduced several key features, including a new food restriction system that allows players to manage what their colonists and prisoners can eat.

• New Food Restriction System: Players gained the ability to set specific food restrictions for their colonists and prisoners, enhancing gameplay management.
• Multi-version mod support: Added on January 20, 2019, this feature enabled mods to support multiple game versions using version-specific directories.
• Optimized Game Loading: Released on May 31, 2019, this update improved loading times, particularly when using mods.

• Quality of Life Improvements: The 1.0 version ensured compatibility with un-modded savegames from earlier beta versions, allowing players to transition smoothly to the full game.

• Updated Localizations: Language data and player-created content translations were updated throughout the year, improving accessibility for a wider audience.