Code:

General Major bugfixes and performance improvements Biggest: Tactical AI, Diplo AI, Trade AI, City Production AI, Policy Air Note: CP-only players should see some big improvements, but let me know if anything weird happens Double note: the production and diplo AIs saw the biggest changes. I'll be keeping an eye on them. Github issue resolutions Other bugfixes and improvements Balance Happiness Increased base happiness by 1 at all difficulties Increased tech scaler by 50% for happiness (now 1:1) Buildings Circus +1 happiness returned Runestone: switched 10 Gold back to 10 Production on land pillage, scaling wih era Beliefs Founders Herp Worship: bumped scaler value to 60 (was 40) Followers Veneration: added flat +1 production, removed flat +1 gold, reduced 25% faith to culture to 10%, added 10% gold. Faith purchase costs for units/buildings no longer double dip on scaling costs via tech Policies Fealty Nobility - removed happiness on Armory, changed +2 food to +2 gold for Armory Serfdom - now +2p/+1g on Pastures (removed Plantations) Wonders CERN and Hubble: -1 policy required to unlock (now 27) Prora: fixed pillage bonus to reflect updated code Tourism Modified 'blanket' modifiers for tourism: Open Borders - now 10% (was 20%) Trade Route - now 10% (was 20%) Diff Ideologies - now -15% (Was -50%) Diplomat - now 10% (was 25%) Open Borders modifier in Artistry now 10% (was 20%) Trade Routes - when completed, give the same amount of tourism to the target civ as now, but 50% of it also goes to all known civs Reduced base Culture per Great Work to 2 (was 3) Bumped Theming Tourism bonus on almost all tourism buildings by 25-50% Increased Event Tourism starting value by 1 (6->7) Espionage Reduced average length of time for GW heist to be achieved by about 50%. Units Air Units Reworked promotion trees for air units Interception chance promtions now a tier set, no longer assigned to units (so units must be specialized as interceptors if desired) Bombers now given two roles: anti-unit line and anti-city line. Existing promotions tweaked in power Air Supremacy now 75% vs Air/Helicopter (was 150%) Fighters now start with a -25% penalty v land/sea units and cities Production cost of air units reduced by about 20% Fighter RCS reduced by ~5 at each level - now weaker than bombers in flat CS across the board Great Artist turns to count for Culture/Tourism now 15 (was 10), scaler from themes now 20% (Was 15%) Terrain Incense - now +2g base (was +1c) Perfume - gains +1g on Arena/Colosseum Coffee - base yield now +1s/+1f (was +2f), improvement yield now +1g/+1s Lapis - base yield now +1s, improvement now +2p/+1s Buildings New building ability - instant yield in internal TR origin city when internal trade route is completed Ability scales with era, and takes into account the buildings in both cities for the instant yield Market/Bazaar: 25 food, scaling with era Workshop: 25 food, scaling with era Agribusiness: 50 food, scaling with era Factory/Steam Mill: 50 production, scaling with era Civs Removed some aberrant or unnecessary starting position priorities