The S.T.A.L.K.E.R. acronym may have a variety of associated meanings but is usually a reference to the S.T.A.L.K.E.R. game universe which forms the setting for a trio of first-person shooter games developed by GSC Game World.

Other MeaningsEdit


The S.T.A.L.K.E.R. acronym is a contraction that represents Scavenger, Trespasser, Adventurer, Loner, Killer, Explorer, Robber, and is tattooed onto the forearm of the protagonist Marked One in the first game of the series.

Zone inhabitantsEdit

Any human visitor to The Zone where the S.T.A.L.K.E.R. games are set is referred to and classed as a Stalker. This only applies to the sentient visitors and excludes the previously sentient Zombies.
The unfortunate victims that have become heavily exposed to radiation and other elements in The Zone - the Zombified Stalkers form a separate faction as far as some games are concerned.


The film Stalker lent atmosphere to the GSC development, and several S.T.A.L.K.E.R.: Lost Alpha locations draw from this resource for building design.


There are three canon games, all developed by GSC Game World, set in the The Zone, these are (in order of development and release):

S.T.A.L.K.E.R.: Shadow of ChernobylEdit

S.T.A.L.K.E.R.: Clear SkyEdit

S.T.A.L.K.E.R.: Call of PripyatEdit

All of which have their wikis at the quoted links.


Although the X-Ray engine that forms the basic operating system supporting the physics and dynamics of the underlying Game Space has some deficiencies; and has been through a significant number of revisions, this has not discouraged a multitude of 'modders' from altering the original games and deriving a plethora of 'Modifications' or Mods.

All of these mods interact at some level with the S.T.A.L.K.E.R. universe.


  • Within the S.T.A.L.K.E.R.: Lost Alpha definition of the term, readers should note that some of the purported meanings of the "Tattoo" acronym's constituent characters carry over into game development files:
  • Loner(s) are freelancing explorers, also referred to as Loners.
  • Killer is used in the gamefiles to represent and define the Mercenaries.
  • Explorer is often connotative with the Ecologists.
  • Robber may be attributed to the Bandits or their progenitors the Renegades.