PlayStation Plus members will be able to download Dyad free, starting on Tuesday, December 17th when the PlayStation Network updates. For the uninitiated, Dyad is a colorful, hypnotic and abstract shooter with a psychedelic soundtrack, but every single person who played it describes it differently. PlayStation 4 owners have access to Killzone: Shadow Fall multiplayer trial from December 28-31.
Also, the Holiday Sale continues and features discounts on a variety of titles, including Far Cry 3, God of War: Ascension, Guacamelee!, Limbo, Beat Hazard Ultra, Deadpool and Just Dance 2014, among others. Other discounted titles include Terraria for the Vita, Ethan: Meteor Hunter, Atomic Ninjas, Zombie Driver HD and One Epic Game.
Source: PlayStation Blog