IMHO.

Single-player games like Forgotten Seas

Below are 12 single-player Steam games similar to Forgotten Seas, 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 Forgotten Seas page.

Ranked picks

  1. 1
    Start Over — Steam game cover

    Start Over

    Single-player alternative to Forgotten Seas — playable solo, no multiplayer required. Shares Action and Indie with Forgotten Seas.

    Embark on an unpredictable survival journey in Start Over. Solo, co-op, online, explore diverse landscapes, craft through 4 tech tiers, encounter wildlife, and trade or raid for resources. Choose your path, defend against waves, and shape your destiny in a dynamic world. Are you ready to Start Over?

    2024ActionIndieAdventure14.99 USDDeck PlayableSingle-playerSimilar games →
  2. 2
    Dawn of Defiance — Steam game cover

    Dawn of Defiance

    Single-player alternative to Forgotten Seas — playable solo, no multiplayer required. Shares Action and Adventure with Forgotten Seas.

    You are the Defier, a Spartan beginning your afterlife on the Crossroads. In this Greek myth-inspired survival craft, ascend from weak soldier to god-like anti-hero. Build impressive Greek structures, craft legendary gear, and break the seals of the Underworld with up to 3 friends.

    2024ActionAdventureEarly Access19.99 USDDeck PlayableSingle-playerSimilar games →
  3. 3
    ASKA — Steam game cover

    ASKA

    Single-player alternative to Forgotten Seas — playable solo, no multiplayer required. Shares Adventure and Simulation with Forgotten Seas.

    A new Viking age dawns with you at its helm. Forge a thriving colony from nothing in this mythic open-world survival sim. Earn the gods' favor and survive in a land ruled by ancient terrors and unforgiving seasons. Rally unique villagers, expand your settlement and defend your tribe - solo or co-op!

    2024StrategyAdventureSimulation24.99 USDDeck PlayableSingle-playerSimilar games →
  4. 4
    Satisfactory — Steam game cover

    Satisfactory

    Single-player alternative to Forgotten Seas — playable solo, no multiplayer required. Shares Indie and Adventure with Forgotten Seas.

    Satisfactory is a first-person open-world factory building game with a dash of exploration and combat. Play alone or with friends, explore an alien planet, create multi-story factories, and enter conveyor belt heaven!

    2024StrategyIndieAdventure39.99 USDDeck VerifiedSingle-playerSimilar games →
  5. 5
    Soulmask — Steam game cover

    Soulmask

    Single-player alternative to Forgotten Seas — playable solo, no multiplayer required. Shares Indie and Adventure with Forgotten Seas.

    Don the Ancient Mask. Wield the power of gods. Possess any of your tribespeople, recruit followers, and build a thriving automated civilization. Survive, expand, and forge your own legacy across a vast ancient open world — together with friends.

    2026IndieAdventureSimulation29.99 USDDeck PlayableSingle-playerSimilar games →
  6. 6
    Salt 2: Shores of Gold — Steam game cover

    Salt 2: Shores of Gold

    Single-player alternative to Forgotten Seas — playable solo, no multiplayer required. Shares Action and Indie with Forgotten Seas.

    Salt 2 is a pirate-themed open world adventure focused on exploration, crafting, and survival. Play solo or with up to 5 friends, sailing the sea with your ship as a mobile base. Discover islands full of quests, towns, caves, and secrets. Level up, craft gear, hunt, fish, and customize your ship.

    2025ActionIndieAdventure19.99 USDDeck VerifiedSingle-playerSimilar games →
  7. 7
    Windrose — Steam game cover

    Windrose

    Single-player alternative to Forgotten Seas — playable solo, no multiplayer required. Shares Action and Adventure with Forgotten Seas.

    Embark on a PvE survival adventure in the Age of Piracy. Fight on land and sea, solo or with friends. Build, craft and explore vast open world filled with dark secrets. Master soulslite combat and take on challenging bosses, command your ship and plunder unspoken treasures!

    2026ActionAdventureRPG29.99 USDDeck PlayableSingle-playerSimilar games →
  8. 8
    Voidtrain — Steam game cover

    Voidtrain

    Single-player alternative to Forgotten Seas — playable solo, no multiplayer required. Shares Action and Indie with Forgotten Seas.

    Become a crew member of an Interdimensional Express Train! Discover a new world full of mysterious creatures, enemies and places. Upgrade and customize your train, gather new materials and build better weapons. Play solo or online сo-op with up to 4 people.

    2025ActionIndieAdventure29.99 USDDeck PlayableSingle-playerSimilar games →
  9. 9
    Sid Meier's Pirates! — Steam game cover

    Sid Meier's Pirates!

    Single-player alternative to Forgotten Seas — playable solo, no multiplayer required.

    Sail the Caribbean, marauding all on the high seas or ally your ship and crew as a privateer in search of riches - the life you choose is up to you. Face dogged enemies, raid unsuspecting villages, woo fair maidens, avoid capture or dig for buried treasure. Discover what it takes to become one of the most famous pirates in history!

    2005RPG9.99 USDSingle-playerSimilar games →
  10. 10
    Assassin’s Creed® IV Black Flag™ — Steam game cover

    Assassin’s Creed® IV Black Flag™

    Single-player alternative to Forgotten Seas — playable solo, no multiplayer required. Shares Action and Adventure with Forgotten Seas.

    Discover Assassin's Creed IV Black Flag, the classic pirate action-adventure game from 2013. Command your ship, hunt Templars and carve your legend as Edward Kenway across the Caribbean's Golden Age of Piracy.

    2013ActionAdventure39.99 USDDeck PlayableSingle-playerSimilar games →
  11. 11
    Valheim — Steam game cover

    Valheim

    Single-player alternative to Forgotten Seas — playable solo, no multiplayer required. Shares Action and Indie with Forgotten Seas.

    A brutal exploration and survival game for 1-10 players, set in a procedurally-generated purgatory inspired by viking culture. Battle, build, and conquer your way to a saga worthy of Odin’s patronage!

    2021ActionIndieAdventure19.99 USDDeck VerifiedSingle-playerSimilar games →
  12. 12
    Cozy Builder — Steam game cover

    Cozy Builder

    Single-player alternative to Forgotten Seas — playable solo, no multiplayer required. Shares Indie with Forgotten Seas.

    Build, design, and decorate your dream château in a cozy vineyard valley. Live among your creations, harvest grapes from sunlit vineyards, and craft artisanal wine blends in a relaxing sandbox builder where every home helps restore beauty and balance to the countryside.

    IndieCasualSingle-playerSimilar games →