Single-player games like Marvatten
Below are 8 single-player Steam games similar to Marvatten, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Marvatten page.
Ranked picks
- 1

Conqueror of the Seas
Single-player alternative to Marvatten — playable solo, no multiplayer required. Shares Action with Marvatten.
Set sail into an epic age of war, where medieval empires clash for dominance on the seas. Cannons thunder, Greek fire burns, and fleets collide amid fire and chaos. Customize your ship, summon holy reinforcements, and unite with allies to conquer historic cities and reshape the fate of an era.
- 2

Legacy of Sail
Single-player alternative to Marvatten — playable solo, no multiplayer required.
As a 17th Century Admiral, send your squadrons out to capture enemy towns and sink their ships. Force boarding actions to capture their prized Ships of the Line all while balancing the need for supplies, repairs and upgrading your crew in this throwback real time tactics naval combat game
- 3

Ship of the line
Single-player alternative to Marvatten — playable solo, no multiplayer required.
Command legendary fleets across 240 years of Age of Sail warfare. 19 historical scenarios — Trafalgar, the Nile, the Armada. Real wind physics, three-layer damage, and full PvP. Your fleet. Your tactics. Your history.
- 4

Carrier Commander
Single-player alternative to Marvatten — playable solo, no multiplayer required. Shares Action with Marvatten.
Carrier Commander is a real-time strategy game which allows you choose the intensity of gameplay. You can manage your Carrier Operations against incoming attacks or intensify your game play by directly engaging the enemy controlling your own Jets, Destroyer's, Helicopter's and more...
- 5

Windward Horizon
Single-player alternative to Marvatten — playable solo, no multiplayer required. Shares Action with Marvatten.
Trade, quest, fight, or simply set sail and enjoy the ambiance in this charming open world naval RPG. Sequel to Tasharen's fan favorite game Windward released on Steam in 2015.
- 6

Skull and Bones
Single-player alternative to Marvatten — playable solo, no multiplayer required. Shares Action with Marvatten.
Skull and Bones is an open world naval action RPG where ship combat, build choice, and sailing skill define your pirate legend. Conquer rival ships and mythical beasts in a vast ocean of up to 20 players.
- 7

Sub Command
Single-player alternative to Marvatten — playable solo, no multiplayer required.
Take charge of the most deadly modern-day submarines in the world - three distinct submarines across two unique and challenging campaigns. Utilize cutting-edge sensor and weapon technology to locate, track and destroy the enemy - even deliver Tomahawk missiles to inland targets.
- 8

Wargame: Red Dragon
Single-player alternative to Marvatten — playable solo, no multiplayer required.
The new reference in RTS at its best! The Wargame series returns to duty, larger, richer and more spectacular than ever before. In Wargame Red Dragon, you are engaged in a large-scale conflict where Western forces clash against the Communist bloc.