Valve announced a change for Steam today that will make things a lot clearer for everyone, as developers will now need to clearly list the kernel-level anti-cheat used on Steam store pages.
Now if only they could more clearly communicate when games are playable offline.
However, it's only being forced for kernel-level anti-cheat. If it's only client-side or server-side, it's optional, but Valve say "we generally think that any game that makes use of anti-cheat technology would benefit from letting players know".
I will always love Valve for their ability to use corpospeak against corpos.
Your game has anti-cheat?
Wonderful!
I'm sure that always only results in an improved experience for all gamers, lets let them all know!
If I was trying to prevent cheating, I'd hash the relevant game files, encrypt the values, and hard-code them into the executable. Then when the game is launched, calculated the hash of the existing files and compare to the saved values.
What is gained by running anti-cheat in kernel mode? I only play single-player games, so I assume I'm missing something.
I bought Sea of Thieves about 5 years ago. Recently, they added kernal-level anticheat (which does precisely fuck-all to actually stop cheating). While that is annoying, I'm not particularly worried because the studio that makes that game is owned by Microsoft, and like all Microsoft products, it was banished to my windows partition with the rest of the spyware.
I do everything important like banking etc on a separate device that isn't my gaming PC. This has been quite liberating since I worry less about invasive anti-cheat, drm etc. I realize not everyone wants to do this but it's been a nice compromise.
This will be helpful for discerning if a game can run on the Steam Deck. There's not many games that don't have verification (Either by Valve or ProtonDB) but for newer games with anticheat it will serve as a good rule of thumb i imagine
Probably a pessimistic take, but I don't expect this to have any discernable impact on sales, or any other effects that would discourage publishers from these practices. The average user doesn't care about or understand how these things work; they'll see an anti-cheat warning on the store page and think "Okay, tell the colonel I'll be on my best behavior then" and continue to buy the game.
I imagine the alternative way to combat kernel-level cheats would be asking player for all his game state data, validating it on a server?
Wouldn't work on peer-to-peer and you'd have to do a bunch of unnecessary compute(recalculating every tick if player-generated data is possible according to game rules) but its the only way I can think of.