PS Plus March free games are rumoured to Dead Nation on PS4 and Tomb Raider & Brothers: A tale Of Two Sons on PS3, along with Smart As and Pixeljunk Monsters Ultimate HD on Vita.
There is no source confirming these titles will be available, Dead Nation on PS4 seems odd initially as there’s been no mention of it to date. However developer Housemarque has previously mentioned it’s working on “another PS4 project”. The PS3 Tomb Raider makes sense though as all the attention shifts to the upgraded PlayStation 4 Version.