We are still looking for your feedback on level design, difficulty, graphics, performance and overall gameplay. This 4th playtest release features support for SteamDeck (fully native) and MacOS with Windows support available, too, of course. This release fixes or updates 47 issues from Playtest 3. First and foremost, we've migrated to Unreal Engine 5.2.1 and have full support for DLSS 3 and FSR 2.2 now! We've put a lot of work into the level designs, graphics and special effects AND made some tweaks to the player movement to make it feel a little more responsive when moving, jumping and falling. The themes for Chapters 1-3 are fully implemented with unique enemies, backgrounds, blocks, weather and FX in each. There is a known issue with MacOS: if you are on a newer M1 or M2 (Apple Silicon) Mac, you'll need to run with [Rosetta enabled.](https://support.apple.com/en-us/HT211861) We are shipping a Universal MacOs build with this playtest, but due to a bug in the communication between Valve's SteamWorks APIs and Epic's Unreal Engine OnlineSubsystemSteam APIs which causes an immediate crash, only the Intel x64 version works correctly Hopefully this gets sorted out between now and our go-live next month. As usual, if you have any problems or feedback, you can reach us on Discord, drop a comment on the community page or even shoot us an email.