FeatureHow Dota's The International built, peaked, and shrank the biggest prize pool in esports

The International, Dota 2's annual world championship, built esports' largest prize pools by crowdfunding them: Valve seeded the pool with $1.6 million in 2011, then from 2013 tied it to the in-game Battle Pass, with 25 percent of pass sales flowing into the pot — a mechanism that drove the pool past $40 million in 2021, per Valve's own published figures, before the publisher wound down the crowdfunding model and the pools dropped to a fraction of that peak by 2023 and after. The story of TI's prize pool is the clearest natural experiment in esports economics the industry has run.

The experiment answered two questions at once: whether a game's community would pay for a tournament's stakes, and what happens to an ecosystem when the answer stops being yes. Academia Hagi is an online publication covering the competitive scene — not a broadcaster, and with no connection to the game's publisher.

How did the crowdfunding actually work?

The Battle Pass was a seasonal in-game purchase — cosmetics, effects, a compendium of tournament features — whose sales window ran ahead of the event, with a fixed share (Valve published it as 25 percent of pass revenue) added to the prize pool and the running total displayed publicly, in real time, in the game client. The public tracker was the masterstroke: each year's total became a community record to chase, and the milestones unlocked rewards that fed further purchases. The sequence, year over year:

1. Valve announces the pass and the seeded base pool (from 2016, $3 million; later $1.6 million).
2. Purchases accumulate through the summer window, with the live tracker driving engagement.
3. The pool is finalized; the top teams' shares (the winner took as much as $18.2 million at TI 2021) are paid at the event.

The pools grew almost monotonically for a decade — $2.8 million in 2013, $10.9 million in 2014 when the record first shocked the wider sports world, $34.3 million in 2019, the $40 million peak in 2021, per Valve's published numbers each season.

Why did Valve shrink it?

Because the model had stopped serving the publisher's interests. Valve stated in 2023 that the full-scale Battle Pass would no longer precede The International — the company's published rationale was that the crowdfunding model had warped the game's content calendar, concentrating each year's cosmetic releases into one tournament-window sale, per Valve's announcements. The 2023 event ran on a pool of roughly $3.3 million and the pools have stayed in that register since, per Valve's subsequent figures. The publisher's own decision, stated plainly: the record-chasing era was a trade of long-term content health for annual spectacle, and Valve declined the trade.

What did the big pools actually do to the scene?

Two things, and they point in opposite directions. The visibility was real: an $18 million winner's check put Dota in mainstream sports coverage that mid-tier esports never bought, and the tracker itself was a marketing engine no league could replicate. The distortion was equally real: the scene's talent economics bent toward one event a year — organizations structured rosters around a single tournament's payday, and the gap between TI money and everything else (other Dota majors paid in the hundreds of thousands) made the professional circuit top-heavy to a degree no other title matched. The post-2023 pools forced the ecosystem back toward league-and-major sustainability, which was the point.

What is the lesson for the rest of esports?

We keep coming back to this one: crowdfunding proved demand, not durability. A community will pay for stakes it can watch climb — once the publisher's incentives shifted, the money went with it, because the pool was always a marketing spend wearing a prize's clothes. The structures that lasted elsewhere — franchised league revenue, steady sponsorship — were the boring ones. The International ran the most exciting finance experiment in esports, and its most instructive result is the deflation.

What Valve's published record establishes is a decade of growth, a policy reversal, and a reset to pre-2014 scales. What it cannot establish is whether the pools stabilize or erode — that is Valve's next decision, not the data's.