Rock Paper Shotgun reports that STALKER 2: Heart of Chornobyl's 2.0 update, launching alongside the Cost of Hope expansion, delivers substantial performance and visual improvements after nearly two years of patches following a troubled launch. The update migrates the game to a newer version of Unreal Engine 5 and overhauls lighting and environmental detail, addressing the persistent GPU strain that has dogged the game even as earlier patches fixed bugs and improved its A-Life NPC simulation.

Testing showed notable framerate gains in the most demanding areas, such as faction settlements: a Steam Machine's average in the Rostok marketplace rose from 40fps to 51fps (a 28% improvement), while an RTX 5080 rig gained 33%, from 83fps to 110fps. Gains were smaller in already well-optimised areas like the woods near Zalissya. The update even makes the game more viable on Steam Deck, where FSR has been upgraded from version 3.1 to 4, lifting performance from an unstable 20-30fps to roughly 30fps on the cleaner Performance mode, though it remains limited to low settings.