The hotly anti­cip­ated DLC game fea­tur­ing every­ones favor­ite Tomb Raider is com­ing out soon, as long as you own a Xbox 360.

Crystal Dynamics has revealed today that Lara Croft will indeed be released on the 360 first before even­tu­ally mak­ing its way to the PS3 and PC some­time in September. Why? Because of XBLA’s Summer of Arcade deal:

“The agree­ment with Microsoft is, in order to par­ti­cip­ate in their hugely suc­cess­ful Summer of Arcade pro­mo­tion, there is a win­dow of exclus­iv­ity. That win­dow of exclus­iv­ity is a set four weeks,” said Stewart.

“As with all arcade titles, irre­spect­ive of plat­form, you have to go through your sub­mis­sions before they agree and approve a date.

“Unlike a disc based title where we can pick our win­dow, you have to go by what the first parties approve and give you a date, to make sure you’re not com­ing out on the same day as five other titles. They like to man­age the release win­dow accord­ingly.”

Lara Croft and the Guardian of Light is set to be released on August 18th on XBLA with the PC and PS3 ver­sions fol­low­ing some­time in September.