Choose INSIDE
Choose INSIDE if you want the Color Alternatives, Stereo Sound, and Playable without Timed Input side of the pairing. On Steam, it's Steam Deck Verified, so handheld play works out of the box. 23,692 Steam reviews back the pick.
INSIDE vs Phantom 3D
INSIDE and Phantom 3D both land in Action, Indie, 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, Indie, Adventure on Steam. INSIDE (2016) is 3 years older than Phantom 3D (2019). Phantom 3D is currently ~80% cheaper on Steam than INSIDE (4.99 USD vs. 24.99 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 Phantom 3D
Choose Phantom 3D if it's currently about 80% cheaper on the Steam Store. Phantom 3D launched in 2019.
Both INSIDE and Phantom 3D sit in Action, Indie, 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
 INSIDE |  Phantom 3D | |
|---|---|---|
| Released | 2016 | 2019 |
| Genres | Action, Indie, Adventure | Action, Indie, Adventure |
| Platforms | Windows | Windows, Linux |
| Steam Deck | Deck Verified | Unrated |
| Price | 24.99 USD | 4.99 USD |
| Steam reviews | 96.3% positive (23,692 reviews) | 8 reviews |
| Multiplayer | Single-player only | Single-player only |
| Developers | Playdead | Graverobber Foundation |
Side by side
- Both share Action, Indie, Adventure on Steam.
- INSIDE (2016) is 3 years older than Phantom 3D (2019).
- Phantom 3D is currently ~80% cheaper on Steam than INSIDE (4.99 USD vs. 24.99 USD).
- INSIDE is Deck Verified on Steam Deck; Phantom 3D has no Deck rating yet.
INSIDE vs Phantom 3D — FAQ
- Should I play INSIDE or Phantom 3D first?
- If you want chronology, INSIDE (2016) came out before Phantom 3D (2019). 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 INSIDE and Phantom 3D similar?
- They overlap on Action, Indie, 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 INSIDE run on Steam Deck?
- Yes — INSIDE is rated Deck Verified by Valve. Phantom 3D doesn't have a Deck rating yet, so its Deck behaviour is currently unverified.