Seems to be 50% off as part of the Holiday sale.
You may need a Gold subscription to get it at this price.
The cinematic action-adventure that forced Lara Croft to grow from an inexperienced young woman into a hardened survivor has been re-built for next-gen consoles, featuring an obsessively detailed Lara and a stunningly lifelike world. Lara must endure high-octane combat, customize her weapons and gear, and overcome gruelling environments to survive her first adventure and uncover the island’s deadly secret. The Definitive Edition of the critically-acclaimed action-adventure includes bonus content and combines all of the downloadable content from the Xbox 360 version. The downloadable version of this game supports English, French, Italian, German, Spanish, Portuguese, Russian, Dutch & Arabic