A recent set of posts in @Civinator's RARR thread prompted me to dig up this list of Cumulative & Non-Cumulative Improvement/SW/GW Flags -
Cumulative Flags:
Not Cumulative Flags:
- z
Cumulative Flags:
- Doubles Sacrifice
- +50% Research Output
- +50% Luxury Output
- +50% Tax Output
- Resistant to Propaganda
- Reduce Corruption
- Reduce War Weariness
- Increases Food in Water
- *Increases Trade in Water
- Increases Shields in Water
- +1 Trade in Each Trade-Producing Tile
- Doubles Research Output
- *Treasury Earns 5% (max total earned from interest is still 50gpt)
- Reduce Corruption
- Reduces War Weariness in All Cities
- Doubles City Defenses (Bombardment defense only)
Not Cumulative Flags:
- Defense bonuses of improvements
- Removes Pop. Pollution
- Removes Bldg. Pollution
- Increase Luxury Trade
- Doubles Combat Strength vs. Barbarians
- +1 Ship Movement
- +2 Ship Movement
- Halves Unit Upgrade Cost
- *City Growth Causes +2 Citizens
- Increase Chance of Leader Appearance
- Build Larger Armies
- Allows Healing in enemy Territory
- z