S.T.A.L.K.E.R. - Lost Alpha
S.T.A.L.K.E.R. - Lost Alpha is a stand-alone mod, which means it doesn't modify anything, it is a complete separate game. However, it does require an original version of S.T.A.L.K.E.R. - Shadow of Chernobyl to be installed, or Lost Alpha will not start.
* S.T.A.L.K.E.R. - Shadow of Chernobyl.
* About 18GB of free HDD space.
1: S.T.A.L.K.E.R.: Lost Alpha v1.3000 (LINK)
*Download "S.T.A.L.K.E.R. - LOST ALPHA v1.3000 - Part 1" and Part 2,3, & 4.
Unpack to a temporary location, then run "setup.exe" and install.
2: S.T.A.L.K.E.R.: Lost Alpha v1.3003 Patch (LINK)
*Download "S.T.A.L.K.E.R.: Lost Alpha v1.3003 Patch".
Unpack to a temporary location, then run "STALKER_LostAlpha_Patch_v1.3003.exe" and install.
3: Immersive Reshade 1.56.57 - S.E.P. Version (LINK)
Download and unpack to the game folder.
*Credit goes to Hippobot for the original Immersive Reshade. The S.E.P. version has been greatly improved for both FPS, loading speed and image quality.
*If you want to try the original Immersive Reshade, here is the: (LINK)
4: Start S.T.A.L.K.E.R. - Lost Alpha
Before starting a new game, make sure all settings are at maximum.
*I strongly recommend turning motion blur off.