Comment by a2128
6 days ago
Roblox has a long history of not supporting Linux, and the game was rendered unplayable for many years. In 2022 it became possible following some Wine patches, but then they began to implement a kernel-level anticheat. Roblox initially committed to keeping Wine working but suddenly went back on that and blocked it without notice. Today, the last remaining way is through running the Android version of the game through an Android container or emulator. The TFA is about stopping this exact method of running the game though...
This isn't true. Roblox never had and does not have a kernel anti-cheat.
My mistake, I just assumed their Byfron anti-cheat is kernel level because that's the most common reason why anticheats take issue with Wine. If their anti-cheat operates entirely in usermode, then their decision to block Wine is even more baffling to me.
It is not kernel level, they use a number of pretty fancy user mode tricks to prevent people messing with the game.
They encrypt every page and register an exception handler that decrypts the page when a fault is reached to keep memory secure. They do cache timing checks to see if a page was recently in the working set outside of the expected control flow and will flag you if you fail the check too many times because it indicates tampering.
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Wine doesn't provide every userspace facility Windows does.
The TFA explains that it is up to game to decide if they want to use attestation.