You can grab Injustice: Gods Among Us Ultimate Edition for free on the PlayStation Store right now through until 25th June 2020. Here's a link to grab it from the EU PSN Store, while US users can head on through this link.
Warner Bros is offering the game free of charge as part of the Play At Home and Play Together initiative. We gave Injustice: Gods Among Us Ultimate Edition an 8/10 in the Push Square review, so this is more than worth adding to your digital collection. "It doesn’t make as much use of the PS4’s added horsepower as it probably should, but if you missed out on the original – or really enjoyed the title the first time around – then this will prove a heroic addition to your new console’s collection."
Thanks to Farmboy74 for sending this in.