This month, Sony is holding weekly polls to decide which of two titles will receive a PlayStation Store discount on the following weekend. This week, it's between BioShock: The Collection and XCOM 2.

PlayStation Blog is holding the weekly event, where you can submit your vote for either 50% off of BioShock: The Collection or XCOM 2 before March 15, when voting ends. On March 17, the winner will be announced and the game will go on sale with its discount in tow.

BioShock: The Collection was released in 2016 for PlayStation 4, Xbox One, and PC. The Collection includes remastered versions of first-person shooters BioShockBioShock 2, and BioShock Infinite, as well as all of the DLC that was released for each title.

XCOM 2 was also released in 2016 for PlayStation 4, Xbox One, and PC, and it is the sequel title to the popular XCOM: Enemy Unknown. It is a turn-based strategy game where players must command squad members against an alien invasion.

Previous weeks in the PlayStation Blog polls have included Assassin's Creed The Ezio Collection vs. Final Fantasy XV (winner: Final Fantasy XV) and Hitman The Complete First Season vs. Dragon Ball Xenoverse 2 (winner: Hitman The Complete First Season).