Build 26112169

Old World test branch update 1.0.85174 Test 2026-10-21

To switch to the test branch, right click Old World in Steam and select Properties, open the Game Versions & Betas tab and select 'test' in the version list.

Design

• Stunned units are immune from being re-stunned

• Increased Ruthless AI war declaration probability when the player is close to winning

• Added No Mountains option to Wetlands map script (Empires of the Indus)

Programming

• Performance optimization

• Units processed before characters again

• Converted Stun cooldown to a unit effect

UI

• Added new notifications about known rival player state changes: relative power, relative knowledge, increase in best city culture, when they get 1, 4, or 7 laws

• Added diplomacy column to the player screen

• Added color to family opinion text in player screen

• Player screen no longer reveals family opinion breakdown

• Added additional helptext for right-click & drag to reorder cycle buttons

• Moved inactive bonuses to Potential Bonuses link on Connected and Citizen tooltips. Potential Bonuses are hidden when Advanced Help Text is not enabled

• Removed some redundant terrain checks for Bath improvements

Bugs Fixed

• Fixed AI giving non-military units (especially Settlers) lower priority than intended

• Fixed pathfinder bugs

• Fixed random event options not being truly random

• Fixed AI development extra starting units not getting allocated a family

• Fixed Ruthless AI war declaration probability increase not being applied

• Fixed improvement ambitions not completing the turn of a leader's death

• Fixed player screen so it works with No Characters option

• Fixed an AI assert

• Fixed event granted critical chance modifier bonus not resetting after attack

• Fixed free specialist border expansion not happening when tile is pillaged

• Fixed load/save error

• Fixed extra Antigonid vision at the start of Heroes of the Aegean scenario 6