Left 4 Dead 2

What works

All multiplayer features including mic, other players' mics, sound effects, intense situations (lots of zombies, duh!), and running in window as opposed to fullscreen.

What does not

Nothing

Workarounds

What was not tested

Every game mode, achievements.

Hardware tested

Graphics:

• GPU:
• Driver:

Additional Comments

Tested with Nvidia GeForce 9800 GT card with Driver version 185.18.36. Failed to run in wine 1.1.33, giving the incomplete installation(2) that others have encountered, but upon forcing wine to update to 1.1.43, it works flawlessly. As with other valve games, using directx 8 (-dxlevel 81) in the game's launch options improved my performance over using directx 9.

- To get past the "Incomplete Installation" error:

Use Wine-1.1.35 or later

- To get past crashing at the MOTD display when joining a multiplayer game:

Either: Use native urlmon.dll (can be limited to just left4dead2.exe),
Or: Use wine-1.1.27 or earlier.

- To improve the performance

1. Enable multicore rendering.  This increases performance by 10-15 fps in most places for me.
2. Use the following patch:
http://bugs.winehq.org/attachment.cgi?id=24812
   This increases performance by 50-60 fps in most places for me.  Note that you may need to minimise/restore or otherwise lose and regain focus of the game to fix the flashlight and some textures if using this patch.
   The performance is so much better in wine-1.1.33 that this doesn't seem to be needed any more.  The framerate with this in wine-1.1.32 was still higher than the framerate without this in wine-1.1.33 though.

- To get past the crashing/restarting/broken game files which occurs every few minutes during gameplay

Add -lv to the launch options in Steam.  This enables low gore mode, which for some reason fixes the problem.  Low gore mode doesn't look as great, but it's worth it for the stability.