Portal sales estimate
Portal is an action game by Valve, released on Steam on October 10, 2007 at $9.99. It has 175,544 Steam reviews (Overwhelmingly Positive, 98% positive). Markan estimates it has sold between 3.5M and 9.7M copies on Steam, for $12 million to $34 million in net revenue.
Estimated lifetime sales and revenue
| Low | Medium | High | |
|---|---|---|---|
| Copies sold | 3,510,880 | 6,670,672 | 9,654,920 |
| Net revenue (USD) | $12,197,227 | $23,174,731 | $33,542,374 |
Steam doesn't publish sales. These estimates multiply the number of reviews by a factor that depends on the release year (the Boxleiter method). Net revenue is what's left of list price × sales after refunds, regional pricing, discounts, sales tax and Steam's 30% cut, before any publisher's share. Treat them as a ballpark for comparing games, not as reported figures.
Steam facts
| Developer | Valve |
|---|---|
| Publisher | Valve |
| Release date | October 10, 2007 |
| Price | $9.99 (US list price) |
| Reviews | 175,544 · Overwhelmingly Positive · 98% positive |
| Genres | Action |
| Platforms | Windows, Linux |
| Links | Steam store page · Website |
Portal™ is a new single player game from Valve. Set in the mysterious Aperture Science Laboratories, Portal has been called one of the most innovative new games on the horizon and will offer gamers hours of unique gameplay.From the Steam store page
Games like Portal
Steam games that share the most distinctive tags with Portal, with their own sales estimates.
-
Suicide Guy 2017 · $5.99 · 2,837 reviews
· ~150k sold -
Portal 2 2011 · $9.99 · 392,936 reviews
· ~28M sold -
Suicide Guy VR 2020 · $9.99 · 138 reviews
· ~5k sold -
Gravitas 2019 · Free · 7,168 reviews
· ~308k players -
ChromaGun 2016 · $12.99 · 306 reviews
· ~19k sold -
Gravulse Experimental 2020 · Free · 243 reviews
· ~9k players -
Playback Loop 2024 · Free · 99 reviews
· ~4k players -
Quantum Conundrum 2012 · $8.99 · 1,764 reviews
· ~123k sold
Compare Portal with your own game
Markan is a free add-in for Google Sheets and Excel that turns games like these into a market analysis: your reference games, their sales and revenue estimates, and a projection for your own game. Install it, then paste this line into its search box to start with Portal and the games above:
Steam IDs: 400, 303610, 620, 1316760, 1067310, 408650, 1465210, 2862670Or ask your AI assistant: Markan's data is also available to Claude, ChatGPT, Cursor and others through MCP.
Data from Steam, last updated by Markan on 2026-11-11.
