Trying to identify a game I played at a convention a couple years ago. (No, it was not Diplomacy.) It was a fairly light and lighthearted game where you play the “Space UN” and debate what laws to pass. Every player has a species — one guy was the “Klingons” (but not), and I was the mind-controlling space slugs.
The name of the game was an outer-spacey pun of some sort — on “bureaucracy”, or “diplomacy” or the like.
You drew cards to determine what legislation to debate — card would have blanks in the topic, and you would draw from a second deck to fill in the blanks(?) — then two players would debate that legislation. Then other players voted who won each debate. One of the debates I recall was regulations on how many prosthetic limbs a being was allowed to add to their body (insert “arms control” joke here).
I believe it was a relatively recent game at the time, but it could have been a reprint of an older one. I probably played it three or four years ago