Choose The Swordfish: Knight of the Deep
Choose The Swordfish: Knight of the Deep if it's a focused single-player run rather than a multiplayer commitment. The Swordfish: Knight of the Deep launched in 2026.
The Swordfish: Knight of the Deep vs Primal Planet
The Swordfish: Knight of the Deep and Primal Planet 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. Primal Planet (2025) is 1 year older than The Swordfish: Knight of the Deep (2026). Primal Planet has co-op; The Swordfish: Knight of the Deep does not. 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 Primal Planet
Choose Primal Planet if you want the Multi-player, Shared/Split Screen, and Shared/Split Screen Co-op side of the pairing. On Steam, it's Steam Deck Verified, so handheld play works out of the box. Primal Planet launched in 2025.
Both The Swordfish: Knight of the Deep and Primal Planet 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
 The Swordfish: Knight of the Deep |  Primal Planet | |
|---|---|---|
| Released | 2026 | 2025 |
| Genres | Action, Indie, Adventure | Action, Indie, Adventure |
| Platforms | Windows, macOS | Windows |
| Steam Deck | Unrated | Deck Verified |
| Price | Price unknown | 19.99 USD |
| Steam reviews | — | 90% positive (299 reviews) |
| Multiplayer | Single-player only | Multi-player, Shared/Split Screen Co-op, Co-op |
| Developers | Wander Brain | Seethingswarm |
Side by side
- Both share Action, Indie, Adventure on Steam.
- Primal Planet (2025) is 1 year older than The Swordfish: Knight of the Deep (2026).
- Primal Planet has co-op; The Swordfish: Knight of the Deep does not.
- Primal Planet is Deck Verified on Steam Deck; The Swordfish: Knight of the Deep has no Deck rating yet.
The Swordfish: Knight of the Deep vs Primal Planet — FAQ
- Should I play The Swordfish: Knight of the Deep or Primal Planet first?
- If you want chronology, Primal Planet (2025) came out before The Swordfish: Knight of the Deep (2026). 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 The Swordfish: Knight of the Deep and Primal Planet 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 The Swordfish: Knight of the Deep have multiplayer like Primal Planet?
- No. Primal Planet supports multiplayer on Steam (Multi-player, Shared/Split Screen Co-op, Co-op), while The Swordfish: Knight of the Deep is listed as single-player only.