I'd like to implement a restriction on a number of improvements that already exists for a number of improvements in the game. I find a number of improvements to be too "spammable", like fisheries, the new offshore wind farms in GS, and others. What I want to do is change their parameters so that they cannot be built next to another of the same kind, so if you build a fishery on one tile you can't build it on any adjacent tiles. I tried this: Code: UPDATE Improvements SET SameAdjacentValid = 0 WHERE ImprovementType IN ('IMPROVEMENT_FISHERY','IMPROVEMENT_OFFSHORE_WIND_FARM','IMPROVEMENT_SEASTEAD'); ...but it didn't seem to work; I built a fishery and it let me build another one next to it. Does anyone know the parameters that need to be changed for this?