Talk:Stalker/@comment-49.149.121.243-20141007154054/@comment-24239195-20150915003845

1 Mark for every boss in the game. Except Captain Kril AND Vor. Which both count as individual bosses apart from their original Planet. So you can get 2 Marks from 1 Boss fight AND the individual marks from Mercury and leech krils Planet.

-Aperture Science