I originally posted this in the Bug Reports forum only to learn it is likely my personal mod that increases the cost of technologies and civics to slow the game down that is causing the problem. As the title states, around the Industrial Era in my current game I started to see Seasteads and Offshore Wind Farms show up by the AI players. Then I noticed that "Advanced AI" was an option right next to "Steam Power", so I knew something was up. Screen shot attached showing the future era techs as researchable although none of their prereqs have been researched. Basically, it seems the random future era techs are using some kind of mechanic that is getting screwed up by my increased technology costs. Anyone have any ideas? I poked around the tables and did find a "Technologies_XP2" table that has all of the random prereq techs, but beyond a cost structure in there I cannot see why they are showing up. Help appreciated!