Choose Portal 2
Choose Portal 2 if you want the Shared/Split Screen, Shared/Split Screen Co-op, and Camera Comfort side of the pairing. On Steam, it carries the stronger Steam consensus at 98.9% positive across 169,764 reviews.
Portal 2 vs Superliminal
Portal 2 and Superliminal 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 9 years older than Superliminal (2020). Portal 2 scores higher on Steam reviews (98.9% positive) than Superliminal (93.8% 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 Superliminal
Choose Superliminal if you want the Online PvP and PvP side of the pairing. On Steam, it's the newer release (2020) and ships with the modern feature baseline. 13,972 Steam reviews back the pick.
Both Portal 2 and Superliminal sit in Action and Adventure on Steam and both list Multi-player, Online Co-op, and Co-op, 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 |  Superliminal | |
|---|---|---|
| Released | 2011 | 2020 |
| Genres | Action, Adventure | Action, Adventure |
| Platforms | Windows, Linux | Windows, macOS, Linux |
| Steam Deck | Deck Verified | Deck Verified |
| Price | 9.99 USD | 19.99 USD |
| Steam reviews | 98.9% positive (169,764 reviews) | 93.8% positive (13,972 reviews) |
| Multiplayer | Multi-player, Online Co-op, Shared/Split Screen Co-op | Multi-player, Online Co-op, Co-op |
| Developers | Valve | Pillow Castle |
Side by side
- Both share Action, Adventure on Steam.
- Portal 2 (2011) is 9 years older than Superliminal (2020).
- Portal 2 scores higher on Steam reviews (98.9% positive) than Superliminal (93.8% positive).
- Portal 2 is currently ~50% cheaper on Steam than Superliminal (9.99 USD vs. 19.99 USD).
- Both support cooperative play.
- Both are Deck Verified.
Portal 2 vs Superliminal — FAQ
- Which is better, Portal 2 or Superliminal?
- On Steam reviews Portal 2 scores higher (98.9% positive) than Superliminal (93.8% positive). Both have enough reviews to trust the signal, so for players using reviews alone, Portal 2 is the safer pick. Genre fit still matters — check the side-by-side table for the categories each game lands in.
- Should I play Portal 2 or Superliminal first?
- If you want chronology, Portal 2 (2011) came out before Superliminal (2020). 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 Superliminal 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.
- Do both Portal 2 and Superliminal have co-op?
- Yes — both list a co-op category on Steam. Specifics differ: Portal 2 ships Online Co-op, Shared/Split Screen Co-op; Superliminal ships Online Co-op, Co-op.
- Do Portal 2 and Superliminal both run on Steam Deck?
- Yes — both are Steam Deck Verified, meaning Valve confirms they run with full controller support, legible text, and default settings out of the box.