As teased by the studio, Housemarque is making Returnal DLC in the form of a free co-op update. It also will come with a survival mode
Returnal Archives - One More Game
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Returnal PC Review - Merlin'in Kazani
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Returnal Ascension update adds free co-op and survival mode this
Returnal™ on Steam
Returnal to get a free update adding co-op campaign in a couple of
Returnal Is Getting A Free Co-Op Campaign And Survival Mode
Returnal Ascension Update Brings Co-Op And A Survival Mode To The
Returnal™
Returnal Ascension: 5 Things You Should Know About Co-Op
Watch 18 minutes of Returnal's Tower of Sisyphus gameplay
Returnal on PC Seemingly Confirmed After SteamDB Leak