Last 7 days
Screenshots, achievements, specs, every price change and sale we've seen on Steam, and trading cards.
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Steam prices for United States (change the country in the top bar), and Steam keys from authorized stores.
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75% positive of 10,454 · Mostly Positive · Live from Steam
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Become the ultimate shape-shifting weapon!
Live data from Steam, tracked by SteamPlayerBase.
What changed on Steam for this game since we started following it: prices and sales, builds, name, release date and review score.
Review score: 75% on 2026-11-01 → 75% today (10,454 reviews)
No authorized Steam key store lists this game right now.
Every build released on Steam for this game since we started tracking it, with the developer's patch notes. Updated within minutes of each new build.
Today's Deal: Save 75% on Prototype Franchise !* Look for the deals each day on the front page of Steam. Or follow us on twitter or Facebook for instant notifications wherever you are! *Offer ends Friday at 10AM Pacific Time
Today's Deal: Save 75% on Prototype 2 !* Look for the deals each day on the front page of Steam. Or follow us on twitter or Facebook for instant notifications wherever you are! *Offer ends Sunday at 10AM Pacific Time
The Activision Publisher Weekend continues today with great deals on Activision titles! From now through Monday* pick up titles up to 75% off! Today's Daily Deal features the Prototype franchise at 75% off! Additionally, play the Call of Duty: Ghosts Multiplay…
Today's Deal: Save 60% on Prototype 2 ! Look for the deals each day on the front page of Steam. Or follow us on twitter or Facebook for instant notifications wherever you are!
Freaks of the night, rejoice! Steam has unleashed monster savings on ghoulish (and not so creepy) titles. From now until about the time all the pumpkins are smashed*, over 80 titles (including The Walking Dead, Bioshock, Left 4 Dead, and many more) are availab…
Prototype 2 is Now Available in North, Central and South America on Steam and will become available in other regions soon. Please check the game page for release times. As the game’s all-new infected protagonist, players will experience Sgt James Heller c…
1 item on Steam, newest first.

Works, but may need extra effort. Results from Valve's own testing.
Valve hasn't published test details for this game.