The current Steam Next Fest is about halfway through, and the 10 most-played demos so far might surprise you

Marathon blew up — 150,000 concurrent on day one and it’s the most-played demo at Steam Next Fest. Valve’s stacking 29 promos across 2026, so hits get buried fast. Which of these Top 10 demos will actually survive the hype? #SteamNextFest

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