It is an interesting game, no doubt. You will find screen shots, video and more details on Giveaway page.
How to get BioShock game full version for free ?
Giveaway Page 1 – Free download for United States, Canada, and Mexico.
Giveaway Page 2 – For free download in Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, and United Kingdom.