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Blood++

WARNING! READ THE DESCRIPTION, SUBSCRIBING ALONE WILL NOT MAKE THIS WORK

In order for this mod to work, firstly, your shader detail needs to be set to Very High. Then you need to move the 370399372.vpk file from the workshop folder
(Steam\SteamApps\common\Left 4 Dead 2\left4dead2\addons\workshop)
to the addons folder above it
(Steam\SteamApps\common\Left 4 Dead 2\left4dead2\addons).

Or alternatively, once the addons have fully loaded, you can change the shader detail to something else, confirm, and then change them back to Very High.

Failure to perform the steps above will result in the mod not doing anything.

This mod simply changes how many decals can overlap, from 3 to 20, effectively making the game more bloody. If you feel it is not bloody enough, and your framerate doesn't tank, let me know, and I might increase the overlap count. Not recommended for weaker machines.

If after installing this mod that you cannot connect to your preferred server with an error message mentioning 'cfg/gpu_level_3_pc.ekv', the server is most probably forcing consistency on the file I modified, meaning you cannot connect unless you remove the mod.