In an industry obsessed with the next blockbuster, Steam's biggest money-maker isn't what's new—it's what's old. Valve's platform pulled in a staggering $11.1 billion in gross revenue in the first half of this year, and a new report from Alinea Analytics reveals a surprising truth: 79% of that cash came from its back catalog.
That $11.1 billion figure for just six months is already on track to eclipse Steam's entire 2021 performance, a year supercharged by pandemic lockdowns.
The Billion-Dollar Backlog
While new games released this year accounted for 21% of revenue, the vast majority of sales came from older titles. Even the biggest new hits can't compete with the sheer volume of the back catalog.
The top-earning new titles so far in 2026 include:
- Forza Horizon 6: $197.7 million
- Resident Evil Requiem: $194.5 million
- Crimson Desert: $190.1 million
This long-tail model has propelled Steam’s estimated annual revenue from roughly $5.5 billion in 2017 to around $20 billion last year.
Valve’s Moat is Trust, Not Exclusives
So, how does Steam keep growing at this unprecedented rate? Alinea Analytics points to massive user growth in Asia, particularly China, and publishers pushing higher-priced premium games.
Then there's the “return to Steam” phenomenon. Many publishers who tried to launch their own PC storefronts have come back to Valve after facing resistance from players who simply prefer a single, unified library.
Steam's real dominance is built on an ecosystem that puts users first. Frequent sales, regional pricing, and robust backward compatibility have created deep-seated trust.
Players know a game they buy today will almost certainly be playable for years, even on future hardware. That long-term reliability is a powerful selling point.
This strategy solidifies Steam's role as the central hub for PC gaming. It creates a "buy once, play anywhere" promise that makes a player's library more valuable over time.
This trust-based approach stands in stark contrast to competitors like the Epic Games Store, which has relied on free game giveaways to build an audience.
Reports from former employees suggest that while the strategy drives traffic, many users simply claim their freebies before returning to Steam to actually spend their money.