Old World February Update: Engine and rendering upgrade

[h3]Main Branch 1.0.82189 Release 2026-02-18[/h3][p][/p][h3]Headline changes[/h3][p][/p]

[p]Major Unity and rendering system update [/p]
[p]Improved graphics performance and memory optimization[/p]
[p]Unique Unit (UU) tech bonus cards are now unlocked through culture instead of tech[/p]

[p][/p][h3]Known Issues[/h3][p][/p]

[p]Portrait Age Interpolation is not working and has been disabled regardless of the player setting[/p]
[p]Fog of War can flicker on and off following movement in some cases[/p]
[p]Unit models and banners can fail to display consistently during AI turn[/p]
[p]Free promotion icon partially hidden[/p]
[p]Cycling to a stacked unit can show their icon behind other units[/p]
[p]Volcano display issues[/p]

[p][/p][h3]Design[/h3][p][/p]

[p]Unique Unit (UU) tech bonus cards are now unlocked through culture instead of tech[/p]
[p]First tier UU bonus cards have had their cost increased from 100 to 200, give 2 units, and require a city with Strong culture[/p]
[p]Second tier UU bonus cards require a city with Legendary culture[/p]
[p]Zealot leader general now performs a Heal action after each kill, instead of being able to Apply Enlist[/p]
[p]Fervent (Piye's unique trait) now enables Apply Enlist as a leader general, at a cost of 100 civics (Wonders and Dynasties)[/p]
[p]Ballista strength reduced from 6 to 5[/p]
[p]Carthage city founding bonus reduced from 200 to 100 civics[/p]
[p]Founding Christianity no longer requires ownership of a Jewish city, now requires 3 Jewish cities globally[/p]
[p]Engineer promotion and general trait allows road building instead of bonus against siege/ships[/p]
[p]Added new national ambition - Control three of each Legendary Improvement[/p]
[p]Changed Control Six Legendary Cities national ambition to Control Five Legendary Cities[/p]
[p]Send 20 luxuries is now a tier 9 ambition instead of a national ambition[/p]
[p]Disciples can now clear vegetation[/p]
[p]Cannot build an improvement that removes vegetation if the unit cannot clear the vegetation[/p]
[p]Traders no longer get a court merchant when founding their seat [/p]
[p]Prevented building improvements on Marsh, except for Farms with Centralization[/p]
[p]All fresh water sources supply fresh water to their own tile in addition to adjacent tiles[/p]
[p]Remove Free Silk and Free Ebony bonus tech cards[/p]
[p]Moved Free Porcelain bonus card to be unlocked by Coinage and reduced tech cost accordingly[/p]
[p]Free Porcelain and Free Perfume bonus cards now give 2 instances of their luxuries[/p]
[p]Autonomous Rule project is removed when a city is breached[/p]
[p]Characters cannot give birth more than once a year (relevant for non-yearly turn scales)[/p]
[p]Free laws that replace an existing law do not increment the law change count[/p]
[p]Raiders can capture empty cities and city sites[/p]
[p]Adjustments to Family Archetype character tendencies:[/p]
[p]Champions have more Zealots and less Heroes[/p]
[p]Riders have more Heroes and less Zealots[/p]
[p]When randomly assigning archetypes, characters with governor effect traits are much more likely to be assigned a governor archetype, and similarly general archetypes for characters with general traits[/p]
[p]Killing Raiders now contributes towards goals to kill units of their original tribe[/p]
[p]Raiders are less stubborn about raiding, if the shortest path is blocked, and will hit opportunity targets instead[/p]
[p]Doubled Master/Elder Scribe money per Citizen, to +2/+4[/p]
[p]Anchoring and Unlimbering states are not interrupted by attacks that apply new cooldowns (i.e. Immobilize, Stun)[/p]
[p]Killed civilian units now count for Assyrian orders, Hero Leader Training, Epics Culture, etc[/p]
[p]Units can pass through hostile civilian units, as long as they don't end their movement on their tile[/p]
[p]Families and Religions suffer -40 opinion for 20 turns when their Workers and Disciples are killed[/p]
[p]Improvements to Carthage campaign persistency[/p]
[p]Increased maximum effect of god opinion on religion opinion in Wrath of Gods scenario (200 -> 500)[/p]
[p]Reduced Tribal raid range in Wrath of Gods scenario[/p]
[p]Disabled Venerate mission for and demands being given by Abandoned god in Wrath of Gods scenario [/p]

[p][/p][h3]Programming[/h3]

[p]Unity updated from 2022.3 to 6.3[/p]
[p]Graphics code converted to Unity's Universal Rendering Pipeline[/p]
[p]The URP upgrade improves graphics performance, letting the game render with fewer draw calls and use fewer shader variants[/p]
[p]Many UI optimizations[/p]
[p]Memory leak fixes[/p]
[p]Improvements to Safe Mode[/p]
[p]AI border expansion tweaks[/p]
[p]AI law value correction to avoid frequent changes[/p]
[p]Better AI legitimacy evaluation[/p]
[p]AI builds slightly fewer units[/p]
[p]Updated unity packages (relay and lobby replaced by multiplayer services)[/p]
[p]Added Latin supplemental characters U+100 to U+17F to Avalon, Trajan and Judson assets, to assist Polish translation mods[/p]
[p]Added support for bonus cards to use bonus names in tooltips (affects mods only)[/p]

[p][/p][h3]UI[/h3]

[p]Families are now shown before Religions on the tab panel[/p]
[p]Swapped Worker Filters and basic actions panels on Selected Worker UI[/p]
[p]Valid Improvements, Rural, and Urban worker filters show improvements valid anywhere in the city rather than just for current tile[/p]
[p]Restart Game button renamed Reroll Game. This keeps the same map and preserves nation/dynasty of random AI opponents but now rerolls the random seed[/p]
[p]New Map button renamed to Reroll Map. This button is not shown for games on predefined maps[/p]
[p]End Turn button can now always be clicked on your turn, will cycle to required items if needed[/p]
[p]Added hotkey for suppressing tooltips (hold Ctrl + X)[/p]
[p]Added hotkey for extending turn time (Alt-E)[/p]
[p]Added Reset option when editing hotkeys[/p]
[p]Added Unimproved Resources overlay to Overlay Customizer[/p]
[p]Character XP is now shown when they have upgraded at least once but progress to next level is 0[/p]
[p]Added Peak Legitimacy and Peak Legitimacy per Leader to Hall of Fame (requires regenerating HOF for existing games, won't display on very old saves)[/p]
[p]Added on-map icon to units that have been disarmed[/p]
[p]Updated ZOC help text[/p]
[p]Enabled gold cost to buy yields for recommended improvements tooltip[/p]
[p]Added color-coding for Send/Return text in Luxury Management[/p]
[p]Improved consistency of city build production cost tooltips[/p]
[p]Trait opinion of leader now shown in trait tooltip even without advanced help text[/p]
[p]Pagan religions are shown in the Adopt State Religion menu even without Divine Rule, with explanatory text[/p]
[p]Yields from disciples on improvements are shown when disciples are selected[/p]
[p]Anchor mission help text includes water control range[/p]
[p]Condensed enlist ability help text[/p]
[p]Greyed out effect for dead character portraits applied more consistently[/p]
[p]Improved Settler Found City tooltip[/p]
[p]Cities with zero yield are included in the nation yield breakdown[/p]
[p]When a non-server network game has disconnected human players and the turn timer is counting down, a warning is displayed next to the turn time [/p]
[p]Improvements to Citrus resource, Grove, Ruins and Alter of the Aten models[/p]
[p]Improvements to Luxury Management display, especially when no luxuries available[/p]
[p]End Turn button now always active, clicking it will cycle to decisions preventing turn from ending[/p]
[p]Free improvement bonuses now show as normal event popups first[/p]
[p]Place improvement overlay not shown while bonus event is active[/p]
[p]When placing free improvements, ctrl+click is required to replace existing improvements[/p]
[p]Games with custom victories are skipped for unloaded scenario mods in Hall of Fame[/p]
[p]Improved fidelity of shadows on high settings[/p][p][/p]

[h3]Bugs Fixed[/h3]

[p]Fixed Valid Improvements worker filter [/p]
[p]Fixed map generation sometimes placing trees under water[/p]
[p]Fixed Hall of Fame display for scenario custom victories[/p]
[p]Fixed units passing through hostile civilians cancelling under construction improvements [/p]
[p]Fixed Dynasty being displayed as "default" with selected Archetype[/p]
[p]Fixed starting a game with more instances of a nation using a preset leader than existing dynasties for that nation[/p]
[p]Fixed hotkeys not triggering unit cycling[/p]
[p]Fixed per citizen generic specialist help text[/p]
[p]Fixed Timeline screen display issues[/p]
[p]Fixed Marshes affecting display of adjacent tiles[/p]
[p]Fixed Rebel units from events sometimes not being assigned to a player[/p]
[p]Fixed some popup scaling aspect ratio issues[/p]
[p]Fixed exception during loading of incompatible asset bundles[/p]
[p]Fixed Coastal Rain Basin boundary mountain range[/p]
[p]Fixed Hardwood Forest player start position issues[/p]
[p]Fixed missing clutter materials on Honey groves[/p]
[p]Fixed opinion graph hover exception[/p]
[p]Fixed hotkey assignments sometimes incorrectly being labeled as conflicts[/p]
[p]Fixed inaccurate opinion sometimes showing in city governor tooltip for Grand Viziers[/p]
[p]Fixed some Chinese text localization issues[/p]
[p]Fixed stun, immobilize, and panic effects sometimes being applied to units inside cities[/p]
[p]Fixed events that kill units not incrementing stats and goal counters[/p]
[p]Fixed temporarily hidden unit pathfinding[/p]
[p]Fixed some AI unit movement cases where it would trip over itself when there were units in the way[/p]
[p]Fixed some minor AI combat issues[/p]
[p]Fixed audio bug that occurred when only one music track was enabled[/p]
[p]Fixed some unit panel icon issues[/p]
[p]Fixed some tribal events incorrectly remaining after tribal elimination[/p]
[p]Fixed Caravan mission button saying that there are no players when out of orders[/p]
[p]Fixed some cases where city effects were not displayed[/p]
[p]Fixed boundary tiles in Caucasus on the Old World map[/p]
[p]Fixed character opinion load/save bugs[/p]
[p]Fixed family seat icon data bug[/p]
[p]Fixed State Religion reminder not opening submenu[/p]
[p]Fixed build specialist tile highlights not showing with border expansion[/p]
[p]Fixed Foreign Marriage mission in No Events mode[/p]
[p]Fixed temporarily hidden units sometimes still being rendered for other players[/p]
[p]Fixed village upgrade turns and improvement help text with Lighthouse[/p]
[p]Fixed Bulwark Cuirass UI issue[/p]
[p]Fixed Unyielding Banner reassigning general to non-player units[/p]
[p]Fixed scores not updating after effectPlayers change[/p]
[p]Fixed event decisions not getting restored after clearing selection[/p]
[p]Fixed tutorial videos not showing in the encyclopedia on Linux[/p]
[p]Fixed missing theology info on tech tooltips[/p]
[p]Fixed bonus yield text bug[/p]
[p]Fixed Unit Seen notification not firing if unit becomes visible mid-move[/p]
[p]Fixed Default Governor bugs[/p]
[p]Fixed Peaks adjacency requirement being ignored by Clerics on Sand tiles[/p]
[p]Fixed Encyclopedia display issue[/p]
[p]Fixed Research UI not showing after renaming landmark[/p]
[p]Fixed MP games with one human team getting stuck after victory[/p]
[p]Fixed Ask to Declare War mission helptext[/p]
[p]Fixed tile tooltip to show improvement defensive modifier in neutral territory[/p]
[p]Fixed overlay customizer issues[/p]
[p]Fixed load/save error that was possibly invalidating replay data[/p]
[p]Fixed scenario selection getting cleared when moving to MP setup screen[/p]
[p]Fixed Occurrence effects not being removed when ended by an event/bonus (Wrath of Gods)[/p]
[p]Fixed Veneration jealousy penalty being applied to both religion and god in Wrath of Gods scenario [/p]
[p]Fixed tech helptext not listing non religion-based project unlocks in Wrath of Gods scenario[/p]
[p]Fixed Carthage scenario 3 load/save bug[/p]
[p]Fixed ModManager panel trying to update when not active[/p]
[p]Text and event fixes[/p]