Choose Port Royale 4
Choose Port Royale 4 if it matches what drew you to this matchup. Port Royale 4 launched in 2020.
Port Royale 4 vs Dominus Orbis Maris 1400: Mare Nostrum
Port Royale 4 and Dominus Orbis Maris 1400: Mare Nostrum both land in Strategy, Simulation 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 Strategy, Simulation on Steam. Port Royale 4 (2020) is 7 years older than Dominus Orbis Maris 1400: Mare Nostrum (2027). Port Royale 4 is Deck Playable on Steam Deck; Dominus Orbis Maris 1400: Mare Nostrum has no Deck rating yet. 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 Dominus Orbis Maris 1400: Mare Nostrum
Choose Dominus Orbis Maris 1400: Mare Nostrum if you want an Indie experience. On Steam, it's the newer release (2027) and ships with the modern feature baseline. Dominus Orbis Maris 1400: Mare Nostrum launched in 2027.
Both Port Royale 4 and Dominus Orbis Maris 1400: Mare Nostrum sit in Strategy and Simulation 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
 Port Royale 4 |  Dominus Orbis Maris 1400: Mare Nostrum | |
|---|---|---|
| Released | 2020 | 2027 |
| Genres | Strategy, Simulation | Strategy, Indie, Simulation |
| Platforms | Windows | Windows |
| Steam Deck | Deck Playable | Unrated |
| Price | 39.99 USD | Price unknown |
| Steam reviews | 57.5% positive (586 reviews) | — |
| Multiplayer | Single-player only | Single-player only |
| Developers | Gaming Minds | Alderman Beneke |
Side by side
- Both share Strategy, Simulation on Steam.
- Port Royale 4 (2020) is 7 years older than Dominus Orbis Maris 1400: Mare Nostrum (2027).
- Port Royale 4 is Deck Playable on Steam Deck; Dominus Orbis Maris 1400: Mare Nostrum has no Deck rating yet.
Port Royale 4 vs Dominus Orbis Maris 1400: Mare Nostrum — FAQ
- Should I play Port Royale 4 or Dominus Orbis Maris 1400: Mare Nostrum first?
- If you want chronology, Port Royale 4 (2020) came out before Dominus Orbis Maris 1400: Mare Nostrum (2027). 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 Port Royale 4 and Dominus Orbis Maris 1400: Mare Nostrum similar?
- They overlap on Strategy, Simulation 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 Port Royale 4 run on Steam Deck?
- Yes — Port Royale 4 is rated Deck Playable by Valve. Dominus Orbis Maris 1400: Mare Nostrum doesn't have a Deck rating yet, so its Deck behaviour is currently unverified.