Call of Duty: Modern Warfare 4 leads Steam weekly top-seller consensus due to its October 23 launch momentum, with sustained pre-order and post-launch revenue on the platform plus Season 1 content arriving November 6. The AAA shooter from Infinity Ward maintains high visibility through multiplayer maps, DMZ mode, and Warzone integration, outpacing competitors in recent U.S. charts despite Phantom Blade Zero gains elsewhere. Traders see limited near-term disruption from titles like AION 2 or Counter-Strike 2 given the established player base and pricing structure. Outcomes could shift only if a surprise major release or aggressive discounts on rivals spike revenue dramatically before November 10.