Call of Duty: Modern Warfare 4 holds an overwhelming 78.5% implied probability as the Steam weekly #1 seller due to its major release falling squarely within the October 27–November 3 window. The annual franchise cycle, combined with established pre-order momentum and broad marketing visibility, gives it a decisive edge in platform rankings. Traders view this as a high-consensus outcome given historical CoD performance on Steam, though last-minute competitor surges or regional sales anomalies remain possible. Phantom Blade Zero trails at 14% on the strength of its recent demo traction and action-RPG positioning, while lower-probability titles like Dead by Daylight reflect ongoing but limited weekly engagement. The market underscores release timing and developer scale as primary resolution drivers ahead of the period’s close.