Microsoft has detailed this year’s Xbox Live Summer of Arcade promotion. The first game in the promotion this year will be Limbo (black and white platformer), releasing 21st July. Next up will be Hydro Thunder Hurricane (speedboat racing with 4 player local multiplayer and 8 player online) on 28th July, with Castlevania: Harmony of Despair (classic 2D platforming with six-player online co-op) hitting 4th August. Monday Night Combat (guns, cash, carnage) will be touching down on 11th August, with Lara Croft and the Guardian of Light (isometric weird Lara Croft game that isn’t very tomb raidery) coming on 18th August. If you buy three or more Summer of Arcade titles, Microsoft will give you 400 Allards to spend.