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Last active May 21, 2026 00:42
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The native ARM64 Steam bootstrapper on Apple Silicon without Rosetta
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steam-client-publicbeta_osx.md

The native ARM64 Steam bootstrapper on Apple Silicon without Rosetta 2

  1. Get steam official beta clientmanifests, via: https://steamcdn-a.akamaihd.net/client/steam_client_publicbeta_osx
  2. Find appdmg_osx and get file name like: appdmg_osx.zip.984652b88a9737e3f4e77c656d9ffa67d5042c2c
  3. Add it to steam official CDN, like: https://steamcdn-a.akamaihd.net/client/appdmg_osx.zip.984652b88a9737e3f4e77c656d9ffa67d5042c2c
  4. Download it and rename it to zip, and then unzip it twice(SteamMacBootstrapper.tar.gz).
  5. You would get the Steam.app, drop it into Application.
Screenshot 2026-03-22 at 03 50 46

That's it.

References

  1. https://www.reddit.com/r/macgaming/comments/1m1fi2l/comment/nwebe57/
  2. sean-who/steamarchiver#1
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