[Wondering what to play this week? Sunday Shopper is a weekly segment where we bring you information on games that have been reduced from their original price for this week only!]

First, check out Steam's Weekend Deal - only available til 10 AM tomorrow! Blacklight: Tango Down is now only $7.49!

Next on Steam is Grotesque Tactics, a tactical RPG that claims to be similar to Fire Emblem or Final Fantasy Tactics. Grotesque Tactics is now 20%, making it $15.99 until October 22.

And last but certainly not least, GameStop has some amazing deals this week. Grand Theft Auto IV, Grand Theft Auto: Liberty City, and Bioshock 2 are all $10 for both the 360 and the PS3 versions, making them $19.98, $29.98, and $29.98, respectively. Bioshock 2 for PC is also $10 off and is now $19.99. These deals only last through October 21, so get 'em while they're hot!

And remember, the less you spend on these games, the more you can spend on all the rest!