Rampage Knights is now out of Early Access for Windows and OS X on Steam, and this co-op beat-em-up carries a 17% launch discount. This trailer offers a look at gameplay, and here's a rundown: "You play as a hero trapped by a spell in a magical forest. All paths lead you to a nearby ruined castle, infested with goblins, skeletons and other foul creatures. Gear up with awesome and ridiculous weapons and spells and descend into the deep labyrinth below the ruin to face its sinister master! "