My kid brother bought Enslaved the other day, so I'm having fun with that. It's a bit of a hidden gem. It's a platformer-brawler, so it's like a Prince of Persia-game, but with a staff instead of a sword, and the setting is futuristic. It's post-apocalyptic, but not grim, and the ruins you traverse are all covered with vegetation, so it's not bleak and grey. Fluid character animations and great voice-acting.