Portal 2

18 Apr, 2011Steam Store

★ 98%384,400 reviews9.75 €

DeveloperValve

PublisherValve

Singleplayer Platformer Puzzle First-Person Dark Humor Story Rich Puzzle Platformer Funny Female Protagonist 3D Platformer Action-Adventure FPS Action Co-op Physics Sci-fi Level Editor Science Comedy Atmospheric

Most distinctive niche

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Among all this game's genres, this is the one where players have the most distinctive taste — they rate games very differently from the average Steam gamer, suggesting a more passionate, selective community. It's not about what the game is most tagged as — it's about which of its communities has the most opinionated audience.

Puzzle Platformer

Est. Revenue$000,000Unlock →

Copies Sold000,000Unlock →

Avg Playtime15.2h

Median Playtime7.1h

Reviewer Playtime Distribution

Playtime at review time for 500 Steam reviewers — non-reviewing owners excluded.

Mean significantly exceeds median — a small group of highly dedicated players is pulling the average up. A passionate minority logs hundreds of hours while most players finish their run or the whole story and move on. Classic pattern for sandboxes, roguelikes, and competitive games with infinite depth — the 'superfan tail' inflates the mean.

10th %ile5.5h

90th %ile44.7h

Median12.7h

Mean28.0h

MedianMeanP10–P90 range

Review History Summary

Monthly reviews — positive up, negative down. Dotted lines: Releases = EA · 1.0 · DLCs (soundtracks, radio, music EPs excluded). Hover a release date to see details in the tooltip.

PositiveNegative% Positive