Nox... that rings a bell, wasn't that made by Westwood Studios, the guys who made Command & Conquer, C&C Red Alert and C&C Tiberian Sun?
Anyway,
Duck Game is great fun, but it's tough getting friends together to play a couple rounds. If more TWHL members own this game, we could organize a Duck Game showdown. We could even turn it into a competition where teams of two or free for all combatants battle it out in a couple of rounds. The ultimate winner could then win a free game or something.
The Talos Principle is a no-brainer (wait, it IS a brainer), it's mandatory gaming, this game.
I don't know if this is considered hidden or underrated, but if you enjoy pixel-arty retro style Mentroidvania platformers, I can totally recommend
The Messenger. Holy crap, that was an experience. And the OST, my word, the OST. This game is worth it just for the OST.
Barma'thazël commands you to play The Messenger