#RPGaDAY2023 Day 12: Oldest game you still play. I haven't played it in a while, but if I was after something detailed and simulationist, then I would probably still turn to #GURPS. (And I don't think of #ArsMagica as old, but Wikipedia tells me the latest edition was 2004, so maybe that counts too.) Less intentionally - when our group plays D&D 5e, I recall a blend of rules from AD&D 1st, 2nd, and 3rd edition along with the new rules...