Besides the usual party game nonsense, have also managed to play:
Root: Had quite a few games of this, with 2 and 3 players. Can be confusing at first, but once you get to grips with it, it's really engaging. Benefits from exploring it multiple times with the same group of players. Really looking forward to a 4 player game.
Modern Art: Feels like there's not much to it at first, but is really thinky once you get into it. Great fun.
Blitzkrieg!: Billed as "WWII in 20 minutes", but that's a bit of a stretch (it does play in 20 mins, but doesn't really evoke the feeling of a war game). Not bad, probably need to play it some more to appreciate it.
Wingspan: Really liked this a lot, and the components are fantastic.
Escape The Dark Castle: Enjoyable romp – you turn over cards that represent rooms in a castle you're trying to escape from. Mostly involves just rolling dice to fight monsters, but also has some elements of the "Choose your own adventure" books.