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RimWorld
RimWorld
IndieSimulationStrategy
Ludeon Studios · Ludeon Studios·$34.99
Nov 3, 2022 · 46mo ago

Multiple updates for 1.4 and Biotech

AI summary1mo

A series of hotfixes and balance updates for version 1.4 and the Biotech expansion, focusing on mechanoid utility, gene extraction speed, and various bug fixes.

Buffs9

  • Mechanoids
    • Labor mechanoids now have more work types, allowing Fabricors to prepare meals and Lifters to handle body disposal.Increased
    • Tunneler:Tunneler mechanoids received an armor buff to improve their effectiveness in melee combat.Increased
    • Cleansweeper:Cleansweepers are now accessible via Basic Mechtech research, making colony cleaning available sooner.Standard MechtechBasic Mechtech
  • Genes
    • Gene Extraction:The time required to extract genes has been halved, speeding up genetic research.24h12h h
    • Gene Regrowth:The 'genes regrowing' recovery period after extraction is now shorter.25d12-20d d
  • RoyaltyMechlord Armor:Wearing Mechlord armor from the Biotech expansion now satisfies the requirements for Royal titles.Not satisfiedSatisfied
  • Children
    • Children are now capable of performing basic work starting at age 3.Age 0-2Age 3
    • Children are now permitted to wear shield belts.No shield beltsCan wear shield belts
  • GeneralThe pollution pump's radius was increased by 1 to ensure it can reach the edge of the map.+1 radius cells

Nerfs5

  • Mechanoids
    • Militor:The Militor's mini-shotgun deals slightly less damage.Reduced
    • Militor:The Militor's mini-shotgun now has a longer cooldown between shots.Increased s
    • Bosses:Mechanoid bosses are now more resistant to EMP attacks.Increased
  • ChildrenThe growth points of generated children have been reduced by approximately 25%.Reduced ~25%
  • GeneralThe stacked effect multiplier for the 'got some lovin' thought has been reduced.0.750.6 multiplier

Bug fixes1

  • GenesGenetic Metabolism:Fixed a bug where genetic metabolism did not actually affect the pawn's hunger rate.

Other changes2

  • GenesTemperature Genes:Temperature genes are now more impactful, increasing both heat tolerance and heat weakness.Increased
  • GeneralTox gas research now requires Machining instead of Electricity.ElectricityMachining

subjects affected (5)

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How did this patch land?
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official notes
RimWorld · Nov 3, 2022

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Patch history

see all 59

  1. Update 1.6.4850 releasedJun 8, 2026 · 2mo

    A small update focusing on stability, bug fixes for space/gravship mechanics, and wealth balancing for ancient bridges.

    +41
  2. Update 1.6.4630 releasedOct 31, 2025 · 10mo

    A small update focused on bug fixes, performance optimizations, and stability improvements, particularly regarding gravships, void structures, and pawn behaviors.

    +4
  3. Update 1.6.4543 releasedAug 6, 2025 · 12mo

    A small update focusing on bug fixes, stability improvements, and quality-of-life adjustments for quest shuttles, pathing, and the Archonexus ending.

    +6
  4. Update 1.6.4535 releasedJul 29, 2025 · 13mo

    Update 1.6.4535 focuses on fixing numerous bugs related to the Odyssey expansion, specifically regarding gravships, room vacuum, and corner-based interactions, alongside minor balance tweaks to psilocaps and genes.

    +31
  5. Update 1.6.4528 releasedJul 22, 2025 · 13mo

    Update 1.6.4528 focuses on bug fixes and performance optimizations for the Odyssey expansion, specifically targeting gravship mechanics, glowforest stability, and general game engine efficiency.

    +81
  6. Update 1.5.4104 releasedMay 24, 2024 · 27mo

    A small update focusing on Anomaly expansion refinements, ghoul behavior improvements, and a wide array of bug fixes across all expansions.

    +7
  7. Update 1.4.3704 releasedApr 19, 2023 · 40mo

    Update 1.4.3704 focuses on fixing colonist assignment resets during caravan travel and improving various UI tooltips and descriptions.

  8. Update 1.4.3682 releasedMar 28, 2023 · 41mo

    Update 1.4.3682 focuses on stability fixes, correcting pawn relationship logic, and refining mechanoid stagger behavior.

    +42

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