Choose Prototype™
Choose Prototype™ if it's currently about 33% cheaper on the Steam Store. 5,002 Steam reviews back the pick.
Prototype™ vs Extinction
Prototype™ and Extinction both land in Action, Adventure on Steam, which is why they keep getting compared. The comparison below is built from each game's Steam metadata — release year, genres, categories, Steam Deck status, price, and review score — refreshed daily by imho.run's scraper. Headline differences: Both share Action, Adventure on Steam. Prototype™ (2009) is 9 years older than Extinction (2018). Prototype™ scores higher on Steam reviews (75.7% positive) than Extinction (33.3% positive). No login or purchase needed — scroll for the full table, the verdict FAQ, and links to ranked similar games for both titles.
Which should you pick?
Choose Extinction
Choose Extinction if you want the Steam Leaderboards side of the pairing. On Steam, it's the newer release (2018) and ships with the modern feature baseline. Extinction launched in 2018.
Both Prototype™ and Extinction sit in Action and Adventure on Steam, so either pick lands in the same broad neighborhood. Use the side-by-side table for the feature view, or follow the "Games like" links below to see ranked alternatives for either title.
Side-by-side comparison
 Prototype™ |  Extinction | |
|---|---|---|
| Released | 2009 | 2018 |
| Genres | Action, Adventure | Action, Adventure |
| Platforms | Windows | Windows |
| Steam Deck | Deck Playable | Unrated |
| Price | 19.99 USD | 29.99 USD |
| Steam reviews | 75.7% positive (5,002 reviews) | 33.3% positive (72 reviews) |
| Multiplayer | Single-player only | Single-player only |
| Developers | Radical Entertainment | Iron Galaxy Studios |
Side by side
- Both share Action, Adventure on Steam.
- Prototype™ (2009) is 9 years older than Extinction (2018).
- Prototype™ scores higher on Steam reviews (75.7% positive) than Extinction (33.3% positive).
- Prototype™ is currently ~33% cheaper on Steam than Extinction (19.99 USD vs. 29.99 USD).
- Prototype™ is Deck Playable on Steam Deck; Extinction has no Deck rating yet.
Prototype™ vs Extinction — FAQ
- Should I play Prototype™ or Extinction first?
- If you want chronology, Prototype™ (2009) came out before Extinction (2018). If neither is a sequel to the other, order doesn't really matter — start with whichever fits your current mood, since both share enough on Steam to make either a reasonable opener.
- Are Prototype™ and Extinction similar?
- They overlap on Action, Adventure on Steam, so the catalogue groups them together — but "similar" depends on the specific mechanics. Use the genre + category rows above to decide whether the overlap matches what drew you to the one you've already played.
- Does Prototype™ run on Steam Deck?
- Yes — Prototype™ is rated Deck Playable by Valve. Extinction doesn't have a Deck rating yet, so its Deck behaviour is currently unverified.