The patch is savegame compatible, so You do not have to start new game for this patch, but for maximum experience (and because of Murphy’s law) it’s highly recommended.
Author: atikabubu
We started to develop Lost Alpha in the summer of 2008. The project first started out as a modification to add back the cut levels which all Stalker fans knew of. After a while, it became more than just a modification, it became our dream game, as we saw S.T.A.L.K.E.R.