Announced on June 7th (so a little bit late on this one - oops!), the native Linux beat-'em-up Teenage Mutant Ninja Turtles: Shredder's Revenge will be getting a DLC expansion titled "Dimension Shellshock" later this year.
Read the full article here: https://www.gamingonlinux.com/2023/06/dlc-announced-for-beat-em-up-teenage-mutant-ninja-turtles-shredders-revenge