Nidhogg gets the tension behind a good swordfight and places that into the greater context of navigating large spaces. When played next to another person, the mind games can generate hearty chuckles. The Singleplayer offerings are practically non-existent, however. I'll put Nidhogg into the same camp of games like Duck Game where, on your own, the foundation is still present, but the magic just isn't there. If you have to play it by yourself, the A.I. is pretty solid, so it does edge out the likes of Duck Game in terms of its sustainability. But, yeah, I still don't think it's particularly optimal, and it does take away from my overall opinion of the game.