Steam is still the undisputed heavyweight of PC gaming, and the latest figures make it clear that Valve’s storefront isn’t just holding its lead—it’s extending it. More players are logging in, more developers are launching games, and more money is flowing through the platform each year. Now, new data suggests Steam closed out 2025 with its biggest month ever.
According to Alinea Analytics’ latest newsletter, Steam brought in an estimated $1.6 billion in gross revenue in December 2025. That record-breaking month was powered by more than 100 million players, marking the highest-grossing December in Steam’s history and reinforcing the platform’s status as the world’s largest digital video game marketplace.
The year-over-year jump is especially notable. December 2025 revenue was up 22.7% compared to December 2024, showing that Steam’s momentum isn’t slowing down even as the market becomes more competitive. It also outperformed December 2020, when spending surged during the pandemic and Steam pulled in roughly $1.4 billion—once considered an unusually high watermark for the platform.
Alinea Analytics also highlighted which titles helped drive Steam’s massive holiday performance. ARC Raiders emerged as one of the standout success stories. It was the best-selling game on Steam by copies during the final two weeks of the year, moving 1.2 million units in that short stretch. On a wider scale, the game has reportedly sold 12 million copies across all platforms, with 7 million of those sales coming from Steam alone—an eye-catching signal of just how strong Steam’s audience remains for major releases.
Even with that huge sales volume, ARC Raiders wasn’t the top earner for the period. It ranked second in revenue on Steam over those final two weeks, generating around $32 million. The number-one spot by revenue went to Counter-Strike 2, which isn’t surprising given its enormous player base and consistent monetization.
Steam’s annual holiday sale window also proved, once again, how powerful price cuts can be for driving sales at scale. From December 21 through January 5, several discounted games posted major numbers. Detroit: Become Human surged to about 993,000 copies sold after dropping to just $4, making it one of the clearest examples of how deep discounts can reignite demand. PEAK also had a strong run, selling 779,000 copies during the same period and pushing its lifetime sales on Steam beyond 16 million. Icarus saw a dramatic price drop from $35 to $3, helping it rack up roughly 735,000 copies sold. Battlefield 6 also benefited from a well-timed deal, moving about 706,000 copies with a 30% discount.
Taken together, these December 2025 numbers underline a simple truth: Steam’s combination of a massive user base, strong release visibility, and deeply effective seasonal promotions continues to deliver record-setting results—both for Valve and for the games that hit the right moment with the right price.
