Choose Portal 2
Choose Portal 2 if you want the Multi-player, Shared/Split Screen, and Online Co-op side of the pairing. On Steam, it's Steam Deck Verified, so handheld play works out of the box. 169,764 Steam reviews back the pick.
Portal 2 vs Glass Wing
Portal 2 and Glass Wing 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. Portal 2 (2011) is 4 years older than Glass Wing (2015). Portal 2 scores higher on Steam reviews (98.9% positive) than Glass Wing (70% 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 Glass Wing
Choose Glass Wing if you want an Indie experience. On Steam, it's the newer release (2015) and ships with the modern feature baseline. Glass Wing launched in 2015.
Both Portal 2 and Glass Wing 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
 Portal 2 |  Glass Wing | |
|---|---|---|
| Released | 2011 | 2015 |
| Genres | Action, Adventure | Action, Indie, Adventure |
| Platforms | Windows, Linux | Windows |
| Steam Deck | Deck Verified | Unrated |
| Price | 9.99 USD | Price unknown |
| Steam reviews | 98.9% positive (169,764 reviews) | 70% positive (30 reviews) |
| Multiplayer | Multi-player, Online Co-op, Shared/Split Screen Co-op | Single-player only |
| Developers | Valve | From Soy Sauce LLC |
Side by side
- Both share Action, Adventure on Steam.
- Portal 2 (2011) is 4 years older than Glass Wing (2015).
- Portal 2 scores higher on Steam reviews (98.9% positive) than Glass Wing (70% positive).
- Portal 2 has co-op; Glass Wing does not.
- Portal 2 is Deck Verified on Steam Deck; Glass Wing has no Deck rating yet.
Portal 2 vs Glass Wing — FAQ
- Should I play Portal 2 or Glass Wing first?
- If you want chronology, Portal 2 (2011) came out before Glass Wing (2015). 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 Glass Wing 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 Glass Wing have multiplayer like Portal 2?
- No. Portal 2 supports multiplayer on Steam (Multi-player, Online Co-op, Shared/Split Screen Co-op), while Glass Wing is listed as single-player only.
- Does Portal 2 run on Steam Deck?
- Yes — Portal 2 is rated Deck Verified by Valve. Glass Wing doesn't have a Deck rating yet, so its Deck behaviour is currently unverified.