RecommendedSteam player
You eat people and gain powers from them by tearing them to pieces. So it's basically hard-core KirbyShow moreShow less
2.6 hours at review525 people found this helpful
Prototype™
Players who prefer mobile combat over a fixed weapon choice may find Prototype™ appealing: Mercer reshapes his body into claws, blades and other weapons while hunting across open-world New York. At $19.99 from 
Steam, weigh the purchase against that combat style and your interest in the conspiracy story.
Mercer’s ability to assume another person’s appearance, memories and special abilities gives the disguise mechanic a distinctive role alongside combat. It is most suited to someone seeking that blend of traversal, transformation and solo play. At $19.99 from Steam, weigh the cost against your appetite for a solo action campaign; Dec 17, 2026 – Jan 4, 2027 is the next announced Steam sale window, with no guaranteed participation.
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Price History
Past 36 months · Updated dailyHistorical Low~ $3.992025-09Current Low Across Stores~ $19.99Steamvs. Historical Low+401%
Prices cover Steam and 39 authorized stores; only legitimate offers are counted. The chart shows weekly market-wide lows and Steam's official price across the past 36 months.
01About Prototype™
In Prototype™, Alex Mercer wakes without his memory but with the power to reshape his body into weapons and defenses. Hunt those behind a conspiracy across open-world New York, race over rooftops, and disguise yourself as others to take their memories and abilities. Steam player rating: 80% from 12,621 reviews. Release date: June 10, 2009.
Credits
E
Composer
Cris Velasco · Sonic Mayhem
Developer
Radical Entertainment
Publisher
Activision
Voice
David Andriole
Lowest recorded in 36 months
$3.992025-09-29 · SteamBase game · same records as the chart above; USD history, not a regional Steam low.Language support
| Language | Interface | Subtitles | Audio |
|---|---|---|---|
| English | Yes | — | — |
| French | Yes | — | — |
| Spanish | Yes | — | — |
Show 1 more languages
| Language | Interface | Subtitles | Audio |
|---|---|---|---|
| Italian | Yes | — | — |
Steam PC edition data · 2026-10-23
02Before you buy
Play mode
Prototype™ is a single-player game on Steam PC. You control Alex Mercer in an open-world version of New York.
Combat and abilities
Mercer can transform into claws, blades, hammers, whips, shields and armor. Disguises and sensory abilities are also part of the described moveset.
Languages
Steam PC interface support includes English, French, German and Italian. Full audio and subtitles are not listed for these languages.
03Frequently asked questions
What is Prototype™ about?
You play Alex Mercer, who wakes without his memory and pursues the truth about his origins and a conspiracy.
Where does the story take place?
The story unfolds in an open-world New York City, and the description also mentions a connection to a town in Idaho.
How does traversal work?
Mercer can bound between buildings, run up walls and clear obstacles. The description emphasizes fluid movement and parkour.
Popular Steam reviews
Native-language selection · 10 reviewsSelected helpful reviews in this language show both recommendations and criticisms. This selection does not represent the overall positive rating; opinions reflect the version reviewed.
Not recommendedSteam player
they broke the game with some ♥♥♥♥♥♥ update and now it wont run no matter what you do, thanks activision you can go ♥♥♥♥ yourselvesShow moreShow less
2 hours at review246 people found this helpful
RecommendedSteam player
Destroyed a helicopter by throwing an old lady into it 20/10Show moreShow less
3 hours at review379 people found this helpful
Not recommendedSteam player
I liked it back then but doesn't seem to work on Windows 10 (or my my video card, or whatever else). I looked for a solution online, installed a patch and still I can't even start a game. Not gonna bother anymore if it's too much trouble: I already work on a computer all day, just wanna play games at home, not keep working even more. Shame on Steam and everyone involved for selling games that stopped functioning years ago.Show moreShow less
0.3 hours at review156 people found this helpful
RecommendedSteam player
What a fun game. Get it working with this mod. https://www.nexusmods.com/prototype/mods/52Show moreShow less
1.1 hours at review229 people found this helpful
Not recommendedSteam player
If you are using Windows 10, do not buy this game. Because this game does not work on Windows 10.Show moreShow less
0.2 hours at review153 people found this helpful
RecommendedSteam player
There is now a new mod that fixes ALL the issues from this bad PC port here : https://www.nexusmods.com/prototype/mods/52?tab=descriptionShow moreShow less
12.7 hours at review226 people found this helpful
Not recommendedSteam player
Don't ask me why.Show moreShow less
5.3 hours at review104 people found this helpful
RecommendedSteam player
Forever a classic. No other game lets you brutally absorb an old woman, take her appearance and then sprint up a 40 story building in front of her traumatized relatives like a schizophrenic spiderman.Show moreShow less
12.7 hours at review199 people found this helpful
Not recommendedSteam player
Update for over decade old game, sure. But it did not bring anything new, not even standard resolutions these days. Only thing it did is break everything so thanks. What even was that? just to annoy your players. Well congrats i'm pretty sure it worked just fine..Show moreShow less
9.7 hours at review102 people found this helpful
Source: original Steam user reviews. Helpful votes are an archived snapshot, not live data. Last collected: 08/15/2026.