Not sure where to post suggestions. I think giving captured workers the ability to built unique improvements of the Civilization it was captured from could give the player an incentive to value going at war with a civ at the cost of a diplomatic hit. To make it not OP early game, worker's variety of improvements could be tech-locked on captur, so a shoshone worker captured before the required tech to build encapments was researched by Pocatelo wouldn't get it whether or not the player has researched it. I don't know if it is possible to code it this way though. What do you think?