It took long enough, but Defiance is finally free-to-play on Xbox 360, making the ambitious multi-platform MMORPG shooter free on all platforms after making the transition on PC and PS3. Though saddled with a rubbish TV series and some design issues, we actually found Defiance to be an absolute blast (well, Matt hated it) and a game that was a fun enough shooter to carry its weaker elements. Excellent instanced missions and crazy random flashmob boss battles really helped to give Defiance game a solid backbone.
Carl's in-depth Defiance review still holds true, but there have been numerous content updates and patches over the last few years, meaning that there's a lot of game here costing absolutely nothing. You could do a lot worse than giving it a go. Thanks and credit to sweetnugget @ HUKD for bringing this to our attention!