Note the ridiculously low "recommended system requirements."
Stalker 2: Heart of Chornobyl is about to launch and we've noticed player counts for the original trilogy spiking in anticipation.
"Mechanically, Clear Sky is a surprising leap ahead of Shadow of Chornobyl. Shooting, which was already solid, is tightened further. Mercifully, armour can be upgraded and repaired and there are now much more gear set combinations. This is further complemented by an increased emphasis on artefacts as a necessary adjunct to your gear set. The key aspect that elevates this prequel above its forebear is the extra focus on inventory customisation." - Ken Talbot| NintendoLife
Review - S.T.A.L.K.E.R.: Clear Sky should be seen as an expansion rather than a full prequel, but it is one that fans will enjoy nonetheless.