This week's free PS Plus game is Zombie Tycoon 2, launching tomorrow as a PSN download on PS3 and PS Vita. Zombie Tycoon 2 is the sequel to Frima Studios' real-time strategy game pitting two mad scientists against one another, each with an army of zombies at his beck and call, as they try to invade the town of Finkleville.
In addition to the free game, the usual discount trumpeting will take place tomorrow. Spring Fever concludes with arguably its best week yet, offering up discounts themed around PlayStation All-Stars ($20 for PS Plus members) and its featured combatants. Many notable series are on sale, including entries in Metal Gear, Sly Cooper, BioShock, LittleBigPlanet, Devil May Cry, God of War, Infamous, Ratchet & Clank and Twisted Metal. The full list is available over on the PlayStation Blog.