Choose Portal 2
Choose Portal 2 if you want an Adventure game with Multi-player, Shared/Split Screen, and Online Co-op. On Steam, it's currently about 50% cheaper on the Steam Store. 169,764 Steam reviews back the pick.
Portal 2 vs Gravia
Portal 2 and Gravia both land in Action 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 are Action games on Steam. Portal 2 (2011) is 10 years older than Gravia (2021). Portal 2 scores higher on Steam reviews (98.9% positive) than Gravia (84.2% 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 Gravia
Choose Gravia if you want an Indie and Early Access game with Steam Leaderboards. On Steam, it's the newer release (2021) and ships with the modern feature baseline. Gravia launched in 2021.
Both Portal 2 and Gravia sit in Action 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
 Portal 2 |  Gravia | |
|---|---|---|
| Released | 2011 | 2021 |
| Genres | Action, Adventure | Action, Indie, Early Access |
| Platforms | Windows, Linux | Windows, macOS |
| Steam Deck | Deck Verified | Unrated |
| Price | 9.99 USD | 19.99 USD |
| Steam reviews | 98.9% positive (169,764 reviews) | 84.2% positive (19 reviews) |
| Multiplayer | Multi-player, Online Co-op, Shared/Split Screen Co-op | Single-player only |
| Developers | Valve | Dan Goyette |
Side by side
- Both are Action games on Steam.
- Portal 2 (2011) is 10 years older than Gravia (2021).
- Portal 2 scores higher on Steam reviews (98.9% positive) than Gravia (84.2% positive).
- Portal 2 is currently ~50% cheaper on Steam than Gravia (9.99 USD vs. 19.99 USD).
- Portal 2 has co-op; Gravia does not.
- Portal 2 is Deck Verified on Steam Deck; Gravia has no Deck rating yet.
Portal 2 vs Gravia — FAQ
- Should I play Portal 2 or Gravia first?
- If you want chronology, Portal 2 (2011) came out before Gravia (2021). 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 Portal 2 and Gravia similar?
- They overlap on Action 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 Gravia have multiplayer like Portal 2?
- No. Portal 2 supports multiplayer on Steam (Multi-player, Online Co-op, Shared/Split Screen Co-op), while Gravia is listed as single-player only.
- Does Portal 2 run on Steam Deck?
- Yes — Portal 2 is rated Deck Verified by Valve. Gravia doesn't have a Deck rating yet, so its Deck behaviour is currently unverified.