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Valve has announced today that BattlEye support on Linux with Steam Play Proton has expanded, with new titles available.

As previously announced, currently all developers need to do to make it work is to email BattlEye. That's it. However, developers will still of course want time to test, so it's not exactly an instant thing. Still, it's fantastic progress and now even more games can be enjoyed.

The current list of support titles has expanded and is now:

  • Mount & Blade II: Bannerlord
  • ARK: Survival Evolved
  • Arma 3
  • DayZ (avoid the launcher, use the second option Steam gives)
    • DayZ also needs a higher max_map_count, you can up it temporarily by doing:
      ​sudo sysctl -w vm.max_map_count=1048576
      And permanently:
      echo 'vm.max_map_count=1048576' | sudo tee /etc/sysctl.d/vm.max_map_count.conf
  • Unturned
  • Planetside 2 (use "--disable-gpu" as a launch option, otherwise launcher is blank)

Hopefully by the time the Linux-powered handheld Steam Deck starts shipping in February 2022, that list will expand. I'm still personally hopeful we can see the likes of PUBG working.

You should no longer need Proton Experimental either, since Proton 6.3-8 released back in late November pulled in the BattlEye support.

In related news, Proton Experimental itself was also upgraded recently making Final Fantasy XIV playable, there's a fix for Marvel's Avengers showing prompt about outdated drivers on launch, a fix for eFootball PES 2021 and 2022 crashing on launch, a fix for audio in Mass Effect 1 from Mass Effect Legendary Edition and also improved compatibility with binary Nvidia drivers.

Article taken from GamingOnLinux.com.
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41 comments
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jasonm 4 Dec, 2021
Quoting: tom34
Quoting: jasonm
Quoting: tom34DayZ is crashing on my PC at loading screen: link
ARMA 3 is working for me.

I'm not able to get DayZ working either. :(
You stuck on loading screen too?

I found this while searching around and it may help you so I figured I would share.

"I was able to get it working by running this command:
​sudo sysctl -w vm.max_map_count=1048576

To make it permanent:
echo 'vm.max_map_count=1048576' | sudo tee /etc/sysctl.d/vm.max_map_count.conf

Taken from https://old.reddit.com/r/linux_gaming/comments/r86ziz/more_battleye_titles_for_proton_on_linux/hn6lxzm/

Game now loads and plays fine when started with the second launch option."

Source: https://github.com/ValveSoftware/Proton/issues/3899


Last edited by jasonm on 4 December 2021 at 8:51 pm UTC
tom34 4 Dec, 2021
Quoting: jasonm
Quoting: tom34
Quoting: jasonm
Quoting: tom34DayZ is crashing on my PC at loading screen: link
ARMA 3 is working for me.

I'm not able to get DayZ working either. :(
You stuck on loading screen too?

I found this while searching around and it may help you so I figured I would share.

"I was able to get it working by running this command:
​sudo sysctl -w vm.max_map_count=1048576

To make it permanent:
echo 'vm.max_map_count=1048576' | sudo tee /etc/sysctl.d/vm.max_map_count.conf

Taken from https://old.reddit.com/r/linux_gaming/comments/r86ziz/more_battleye_titles_for_proton_on_linux/hn6lxzm/

Game now loads and plays fine when started with the second launch option."

Source: https://github.com/ValveSoftware/Proton/issues/3899
Thx, now its working :D
Linuxwarper 5 Dec, 2021
Let's guess which game will get anti cheat enabled this month. Surely at least one may be enabled. Glory, fishes and a trip to north pole for the winner. One guess only! Feel free to elaborate on game you guessed.

My guess is Rainbow Six Siege. Ubisoft likes money, asking to have BattlEye enabled seems like a easy way to make money for them.
F.Ultra 5 Dec, 2021
View PC info
  • Supporter
Quoting: jasonm
Quoting: tom34
Quoting: jasonm
Quoting: tom34DayZ is crashing on my PC at loading screen: link
ARMA 3 is working for me.

I'm not able to get DayZ working either. :(
You stuck on loading screen too?

I found this while searching around and it may help you so I figured I would share.

"I was able to get it working by running this command:
​sudo sysctl -w vm.max_map_count=1048576

To make it permanent:
echo 'vm.max_map_count=1048576' | sudo tee /etc/sysctl.d/vm.max_map_count.conf

Taken from https://old.reddit.com/r/linux_gaming/comments/r86ziz/more_battleye_titles_for_proton_on_linux/hn6lxzm/

Game now loads and plays fine when started with the second launch option."

Source: https://github.com/ValveSoftware/Proton/issues/3899

Wow that is a lot of memory mappings. I assume that Windows doesn't limit this or have a higher default, the default on Linux is 65535.
tom34 5 Dec, 2021
I just asked "ArmA 3 Unix Launcher" author, for adding support for DayZ into arma3-unix-launcher.

He not have time ATM, but created this issue https://github.com/muttleyxd/arma3-unix-launcher/issues/180 maybe someone convert this tool for DayZ. :D


Last edited by tom34 on 5 December 2021 at 9:21 pm UTC
Ehvis 5 Dec, 2021
View PC info
  • Supporter Plus
Quoting: F.UltraWow that is a lot of memory mappings. I assume that Windows doesn't limit this or have a higher default, the default on Linux is 65535.

A lot is relative. For Star Citizen the value is upped to 16 million.

Honestly, it feels a lot like the max open files where the default remained extremely low even though it was completely not necessary for current generation computers.


Last edited by Ehvis on 5 December 2021 at 9:16 pm UTC
F.Ultra 5 Dec, 2021
View PC info
  • Supporter
Quoting: Ehvis
Quoting: F.UltraWow that is a lot of memory mappings. I assume that Windows doesn't limit this or have a higher default, the default on Linux is 65535.

A lot is relative. For Star Citizen the value is upped to 16 million.

Honestly, it feels a lot like the max open files where the default remained extremely low even though it was completely not necessary for current generation computers.

Well there are a lot of default limits in Linux to prevent things like fork bombing, comes from being a multi-user system at heart.
Liam Dawe 6 Dec, 2021
I've added the DayZ fix to the article, although for me no matter what I only get a black screen - no loading screen. Sadly this means there will be no testing or videos from me.
jasonm 6 Dec, 2021
Quoting: Liam DaweI've added the DayZ fix to the article, although for me no matter what I only get a black screen - no loading screen. Sadly this means there will be no testing or videos from me.

I was finally able to get it running. I did a handful of things but I believe what actually helped was I removed the game, then installed it on another drive. Not sure if that was it or not but I have a suspicion it was.
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