A PC port of Returnal was confirmed at The Game Awards last week, and like most PlayStation 4 and 5 games appearing on that alternative platform, you'll need some modern hardware to get the best possible performance. Curiously, Returnal's RAM requirements are much higher than previous PlayStation ports, as you'll need 32GB of RAM to keep the roguelite action flowing smoothly.
That's according to the Steam listing for the game (as spotted by WccfTech), which requires a minimum of 16GB of RAM...