Next cheapest is £19.85 at Shopto.
Crysis and Crysis Wars together in one pack at £14.99 or £9.99 per game if you have one of the titles already.
Crysis Maximum Edition contains both Crysis and the pulse-racing new installment Crysis Warhead. This epic story thrusts players into an ever-changing environment, forcing them to adapt their tactics and approach to conquer battlefields ranging from newly frozen jungle to zero-gravity alien environments. Full-featured multiplayer that includes Crysis Wars®, an expanded new multiplayer experience with new online modes and 21 maps including seven all-new maps to battle it out against other players.