Choose Portal 2
Choose Portal 2 if you want an Action game with Multi-player, Shared/Split Screen, and Online Co-op. On Steam, it's currently about 23% cheaper on the Steam Store. 169,764 Steam reviews back the pick.
Portal 2 vs Abyss深淵
Portal 2 and Abyss深淵 both land in 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 are Adventure games on Steam. Portal 2 (2011) is 12 years older than Abyss深淵 (2023). Portal 2 is currently ~23% cheaper on Steam than Abyss深淵 (9.99 USD vs. 12.99 USD). 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 Abyss深淵
Choose Abyss深淵 if you want an Indie experience. On Steam, it's the newer release (2023) and ships with the modern feature baseline. Abyss深淵 launched in 2023.
Both Portal 2 and Abyss深淵 sit in 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 |  Abyss深淵 | |
|---|---|---|
| Released | 2011 | 2023 |
| Genres | Action, Adventure | Indie, Adventure |
| Platforms | Windows, Linux | Windows |
| Steam Deck | Deck Verified | Unrated |
| Price | 9.99 USD | 12.99 USD |
| Steam reviews | 98.9% positive (169,764 reviews) | — |
| Multiplayer | Multi-player, Online Co-op, Shared/Split Screen Co-op | Single-player only |
| Developers | Valve | Nightmore Works |
Side by side
- Both are Adventure games on Steam.
- Portal 2 (2011) is 12 years older than Abyss深淵 (2023).
- Portal 2 is currently ~23% cheaper on Steam than Abyss深淵 (9.99 USD vs. 12.99 USD).
- Portal 2 has co-op; Abyss深淵 does not.
- Portal 2 is Deck Verified on Steam Deck; Abyss深淵 has no Deck rating yet.
Portal 2 vs Abyss深淵 — FAQ
- Should I play Portal 2 or Abyss深淵 first?
- If you want chronology, Portal 2 (2011) came out before Abyss深淵 (2023). 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 Abyss深淵 similar?
- They overlap on 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 Abyss深淵 have multiplayer like Portal 2?
- No. Portal 2 supports multiplayer on Steam (Multi-player, Online Co-op, Shared/Split Screen Co-op), while Abyss深淵 is listed as single-player only.
- Does Portal 2 run on Steam Deck?
- Yes — Portal 2 is rated Deck Verified by Valve. Abyss深淵 doesn't have a Deck rating yet, so its Deck behaviour is currently unverified.