Improvements Enhancement
Enhanced all basic improvements with moderate adjustments, primarily to balance weaker improvements.
Farm
Maize: +3 Gold.
+1 Food if adjacent to a river. +1 Food for each adjacent Aqueduct or Dam. +1 Food for each adjacent Oasis. +1 Food for each adjacent Natural Wonder that provides Freshwater.
+1 Housing upon unlocking Civil Engineering.
Fishing Boats
Can be built on Reefs and Great Barrier Reef.
+1 Production after unlocking Celestial Navigation.
Camp
Starts with +3 Gold.
+1 Gold upon unlocking Medieval Fairs.
+1 Food unlocked in Mercantilism advanced to Medieval Fairs.
Pasture
+1 Gold for Cattle and Sheep.
+1 Production unlocked in Replaceable Parts is moved earlier to Military Science.
Plantation
Starts with +3 Gold.
+1 Gold after unlocking Exploration.
Quarry
+1 Production after unlocking Castles.
Lumber Mill
+1 Production after unlocking Mass Production.
Mine
Copper: +3 Gold.
+1 Production after unlocking Synthetic Materials.
Once Industrialization is unlocked it can also be built on Grassland or Plains.
Fishery
Can be built on Reefs, Great Barrier Reef and Ocean.
+1 Food after unlocking Mass Production. +1 Production after unlocking Civil Engineering.
(Not a basic improvement, but since I often use it and it costs a governor title to unlock, it deserves to be stronger.)
（The cover layout is quite messy, but I’m too lazy to fix it.）
