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 Red Trigger
Portal 2 and Red Trigger 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 5 years older than Red Trigger (2016). Portal 2 scores higher on Steam reviews (98.9% positive) than Red Trigger (77.8% 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 Red Trigger
Choose Red Trigger if you want an Indie game with Steam Leaderboards. On Steam, it's currently about 30% cheaper on the Steam Store. Red Trigger launched in 2016.
Both Portal 2 and Red Trigger 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 |  Red Trigger | |
|---|---|---|
| Released | 2011 | 2016 |
| Genres | Action, Adventure | Action, Indie, Adventure |
| Platforms | Windows, Linux | Windows |
| Steam Deck | Deck Verified | Deck Playable |
| Price | 9.99 USD | 6.99 USD |
| Steam reviews | 98.9% positive (169,764 reviews) | 77.8% positive (18 reviews) |
| Multiplayer | Multi-player, Online Co-op, Shared/Split Screen Co-op | Single-player only |
| Developers | Valve | Bold Spirit Game Studio |
Side by side
- Both share Action, Adventure on Steam.
- Portal 2 (2011) is 5 years older than Red Trigger (2016).
- Portal 2 scores higher on Steam reviews (98.9% positive) than Red Trigger (77.8% positive).
- Red Trigger is currently ~30% cheaper on Steam than Portal 2 (6.99 USD vs. 9.99 USD).
- Portal 2 has co-op; Red Trigger does not.
- Steam Deck: Portal 2 is Deck Verified, Red Trigger is Deck Playable.
Portal 2 vs Red Trigger — FAQ
- Should I play Portal 2 or Red Trigger first?
- If you want chronology, Portal 2 (2011) came out before Red Trigger (2016). 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 Red Trigger 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 Red Trigger have multiplayer like Portal 2?
- No. Portal 2 supports multiplayer on Steam (Multi-player, Online Co-op, Shared/Split Screen Co-op), while Red Trigger is listed as single-player only.