Major Nelson announced today that a slew of games are going to receive discounts this weekend. While Halo: Spartan Assault will be taken down to $10 permanently, three Xbox One games will see some healthy savings soon. Starting on March 28 and ending March 30, Thief and Tomb Raider: Definitive Edition will each get 50% savings on the Xbox One digital storefront, taking them down to a mere $30, while Call of Duty Ghosts: Hardened Edition gets a 20% savings taking it down to $80. Thief is fantastic, and a must-buy at that price, while the definitive version of Tomb Raider is well-worth buying at that price if you haven’t picked it up on another platform. The Xbox 360 won’t be left out in the cold, and will see the entire Bioshock trilogy on sale. Both Bioshock 1 and 2 will be available at a 75% savings, while Bioshock Infinite will be 67% off and its DLC will be 50% off. NBA 2K14 will be 50% off, while Thief and Tomb Raider will also get 50% off savings here, and Call of Duty: Ghosts will be 33% off.