The Game Census

Methodology

What we record

The census takes continuous snapshots that platforms only expose as point-in-time values: concurrent player counts (sampled every 30 minutes for charted titles), weekly review counts (Steam's own histogram, history back to 2012), store prices across ~20 PC storefronts (daily), Twitch viewership (hourly), and ownership estimates (SteamSpy). Every number on a game page is one of these recorded observations — nothing is interpolated or invented, and a game with too little data simply has no page yet.

Health verdicts

A verdict is computed from two signals: live player counts (where available) and review velocity — the number of new Steam reviews in the most recent 8 complete weeks, compared with the 8 weeks before that and with the game's all-time peak week. Thriving = currently on Steam's most-played chart. Healthy / Quietly active = steady review inflow at higher / lower volume. Cooling = recent velocity down more than ~40% vs the prior period. Dormant = zero new reviews in 8+ weeks. Each verdict lists the exact numbers it was derived from. Review velocity is a proxy — a game can retain silent players — which is why the evidence is always shown rather than just the label.

Sales estimates

We use the community-standard review-multiple method (the "Boxleiter method"): total Steam reviews × a multiplier range that depends on the game's release era (older games accumulate fewer reviews per sale). We show the result only as a range — e.g. 20–45× for post-2020 releases — and only for games with at least 50 reviews, below which the multiplier is noise. These are estimates with real uncertainty, typically ±50%, and are cross-checkable against SteamSpy's independent ownership brackets shown on the same page. They are not sales figures from developers or Valve.

Chart history

Two extra series appear on well-tracked game pages. The rank sparkline plots each day's best (lowest-numbered) Steam most-played rank, drawn from our steam_top100 chart snapshots — a day the game wasn't on that chart simply has no point, it is never filled in. The review-delta chart plots day-over-day new positive and negative Steam reviews, computed from daily review-total snapshots; a day is dropped from the chart rather than shown if Steam's own cumulative totals happen to dip, which occasionally happens on their side.

Price intelligence

Prices are recorded daily across roughly 20 PC storefronts via CheapShark, and the lowest price across all of them on a given day is what counts as that day's price. A "sale day" is any recorded day whose lowest price is at or below 85% of the highest lowest-price observed in the trailing 12 months. All-time-low prices are separately backfilled from IsThereAnyDeal, which tracks a wider store list than our daily snapshots and can predate when a game entered our census.

Sources

The Game Census is not affiliated with Valve or any storefront. Corrections: via the about page.