Next month's PlayStation Plus lineup has been revealed. Those who subscribe to the service will be getting six new games to play for free, with December's headline titles being SOMA and Onrush. For PlayStation 3 players, you'll have access to Steins;Gate and Steredenn, while those that still have a PlayStation Vita will get Iconoclasts (PS4 Crossplay) and Papers, Please. SOMA is known for its mix of sci-fi and horror elements while Onrush is an entirely different experience, being an over-the-top arcade racer.
It's also worth noting that by March 2019, both PlayStation 3 and PlayStation Vita titles will no longer be included as part of a PlayStation Plus membership.
You can start playing these games on December 4th.