Playstation Plus is the service that used to be optional but will be required for PS4 to play games online (you will still be able to stream movies, surf the internet and buy games/download demos off the PSN without playstation plus). It will be 5$ a month. Here is the list of free games you will be able to play your first year with a Playstation Plus subscription (this is the list for NA gamers).

• Anomaly Warzone Earth (PSN)
  
• BioShock 2 (PS3)
  
• BlazBlue: Continuum Shift Extend (PS Vita)
  
• BloodRayne Betrayal (PSN)
  
• Borderlands (PS3)
  
• Choplifter HD (PSN)
  
• Chronovolt (PS Vita)
  
• Closure (PSN)
  
• Darksiders (PS3)
  
• Demon’s Souls (PS3)
  
• Disgaea 3: Absence of Detention (PS Vita)
  
• Double Dragon Neon (PSN)
  
• Dungeon Defenders (PSN)
  
• Final Fantasy Tactics: War of the Lions (PSP)
  
• Foosball 2012 (PSN/PS Vita)
  
• Germinator (PS Vita)
  
• Gotham City Imposters (PSN)
  
• Gravity Rush (PS Vita)
  
• Guardians of Middle-Earth (PSN)
  
• Hard Corps: Uprising (PSN)
  
• Infamous 2 (PS3)
  
• Jet Set Radio (PSN)
  
• Joe Danger 2: The Movie (PSN)
  
• Just Cause 2 (PS3)
  
• King of Fighters XIII (PS3)
  
• Knytt Underground (PSN/PS Vita)
  
• Labyrinth Legends (PSN)
  
• Lara Croft and the Guardian of Light (PSN)
  
• LittleBigPlanet 2 (PS3)
  
• Malicious (PSN)
  
• Mega Man 9 (PSN)
  
• Mega Man 10 (PSN)
  
• Mega Man: Maverick Hunter X (PSP)
  
• NBA Jam: On Fire Edition (PSN)
  
• NFL Blitz (PSN)
  
• Ninja Gaiden Sigma Plus (PS Vita)
  
• Outland (PSN)
  
• Pac-Man CE DX (PSN)
  
• PayDay: The Heist (PSN)
  
• Pinball Arcade (PSN/PS Vita)
  
• Plants vs. Zombies (PS Vita)
  
• Quantum Conundrum (PSN)
  
• Ratchet & Clank: All 4 One (PS3)
  
• Renegade Ops (PSN)
  
• Resident Evil 5 (PS3)
  
• Retro City Rampage (PSN/PS Vita)
  
• Rochard (PSN)
  
• Saints Row 2 (PS3)
  
• Scott Pilgrim vs. The World: The Game (PSN)
  
• Sideway: New York (PSN)
  
• Sleeping Dogs (PS3)
  
• Spec Ops: The Line (PS3)
  
• Super Street Fighter IV (PS3)
  
• Tales From Space: Mutant Blobs Attack (PS Vita)
  
• The Cave (PSN)
  
• The Walking Dead: The Game (PSN)
  
• Tekken 6 (PSP)
  
• Uncharted: Golden Abyss (PS Vita)
  
• Vanquish (PS3)
  
• Virtual Fighter 5: Final Showdown (PSN)
  
• Warhammer 40k: Space Marine (PS3)
  
• WipeOut 2048 (PSN/PS Vita)
  
• Zombie Apocalypse: Never Die Alone (PSN)
  
• Zombie Tycoon II: Brainhov’s Revenge (PSN/PS Vita)
  

Games that are available for EU gamers include Red Dead Redemption, Batman AC, Okami, catherine, ICO, Shadow of the Colossus and Battlefield 3.

http://ca.ign.com/articles/2013/06/28/ps...free-games