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RimWorld
RimWorld
IndieSimulationStrategy
Ludeon Studios · Ludeon Studios·$34.99
Aug 28, 2016 · 120mo ago

Alpha 15 - Tutorial and Drugs released!

AI summary3h

Alpha 15 introduces a comprehensive tutorial, a new drug system with addiction and toxicity, deep drilling for late-game resources, and a learning helper system.

Buffs8

  • Learning HelperReplaced yellow pop-up alerts with a persistent learning helper in the top right that tracks learned concepts.pop-upshelper panel
  • DrugsAdded drug policies allowing players to schedule drug intake for colonists.Added
  • Deep DrillingAdded deep scanners and drills to access underground resource clusters, mitigating late-game scarcity.surface onlydeep drilling
  • CombatRanged Combat:Reduced friendly fire chances by 60% for shots that miss and land in a cell with a pawn.100%40% %
  • Trade
    • Reworked trade interface to clearly show trader types and items they refuse to trade.
    • Players can now pay silver to request traders from allied factions.Added silver
  • BuildingsAdded a low-tech passive cooler made of wood to help tribes survive heat waves.Added
  • GeneralSignificantly reduced the chance for known traps to spring.2.5%0.4% %

Nerfs5

  • BeerProduction:Beer production now requires making wort at a brewer table and fermenting it in barrels.simplemulti-stage
  • LuciferiumLuciferium is now 100% addictive on the first dose and cannot be cleared.100% %
  • BuildingsFueled Generator:Fueled generators now consume fuel faster and hold less fuel.Increased
  • General
    • Sowing and harvesting plants is now slower.Slower
    • General debuff to corn stats.Debuffed

Other changes2

  • TutorialAdded a rich step-by-step tutorial covering colony setup and basic combat.Added
  • DrugsIntroduced a complex drug system featuring primary effects, overdose toxicity, tolerance, and addiction/withdrawal.Added

subjects affected (10)

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How did this patch land?
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official notes
RimWorld · Aug 28, 2016

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Patch history

see all 56

  1. Update 1.6.4850 released
    Jun 8, 2026 · 1mo
    +41
  2. Update 1.6.4630 released
    Oct 31, 2025 · 8mo
    +4
  3. Update 1.6.4543 released
    Aug 6, 2025 · 11mo
    +6
  4. Update 1.6.4535 released
    Jul 29, 2025 · 11mo
    +31
  5. Update 1.6.4528 released
    Jul 22, 2025 · 11mo
    +81
  6. Update 1.5.4104 released
    May 24, 2024 · 26mo
    +7
  7. Update 1.4.3704 released
    Apr 19, 2023 · 39mo
  8. Update 1.4.3682 released
    Mar 28, 2023 · 40mo
    +42

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