IMHO.

Single-player games like Sea of Change

Below are 8 single-player Steam games similar to Sea of Change, 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 Sea of Change page.

Ranked picks

  1. 1
    Gregg: Tower Defence — Steam game cover

    Gregg: Tower Defence

    Single-player alternative to Sea of Change — playable solo, no multiplayer required. Shares Action and Strategy with Sea of Change.

    Play as Gregg. Gather, build and destroy your slimy enemies in this thrilling pixel art tower defence!

    2024ActionStrategy3.99 USDSingle-playerSimilar games →
  2. 2
    Destroy The Monoliths — Steam game cover

    Destroy The Monoliths

    Single-player alternative to Sea of Change — playable solo, no multiplayer required. Shares Action and Strategy with Sea of Change.

    Explore. Mine. Build. Fight. Destroy The Monoliths is a single-player real-time mining tower offense roguelike where you explore a randomly generated map, mine the terrain to get resources, and build turrets to both protect your base and fight monoliths that keep spawning ever more minions.

    2023ActionStrategyIndie6.99 USDDeck VerifiedSingle-playerSimilar games →
  3. 3
    S.O.L Search of Light — Steam game cover

    S.O.L Search of Light

    Single-player alternative to Sea of Change — playable solo, no multiplayer required. Shares Strategy and Indie with Sea of Change.

    Dive into the darkness and discover the light in the narrative adventure of S.O.L SEARCH OF LIGHT! Explore a steampunk and dark fantasy world as you face hordes of enemies, manage resources and fortify your robotic village to survive in a dark, hostile reality.

    2024StrategyIndieAdventure19.99 USDSingle-playerSimilar games →
  4. 4
    Anx Defense — Steam game cover

    Anx Defense

    Single-player alternative to Sea of Change — playable solo, no multiplayer required. Shares Strategy and Indie with Sea of Change.

    Defend your Nexus by placing mirrors and buildings on the path of your projectiles. Deflect, empower, manage and solve each map using your creative and strategic mind.

    2023StrategyIndieCasual9.99 USDDeck PlayableSingle-playerSimilar games →
  5. 5
    Hearthguard — Steam game cover

    Hearthguard

    Single-player alternative to Sea of Change — playable solo, no multiplayer required. Shares Strategy and Indie with Sea of Change.

    Hearthguard is a tactical tower defense game that rewards clever pathing and strategic placement. Build mazes, upgrade defenses, and hold the line against relentless waves of enemies.

    StrategyIndieSingle-playerSimilar games →
  6. 6
    Hive — Steam game cover

    Hive

    Single-player alternative to Sea of Change — playable solo, no multiplayer required. Shares Strategy and Casual with Sea of Change.

    A tower-defence-like colony sim where you must extract resources from the land and produce fuel to escape the planet. Expand across each map researching various structures, creatively avoiding or engaging with local creatures to take their precious crystals. Research, Build, Expand, Extract!

    2022StrategySimulationCasual4.99 USDSingle-playerSimilar games →
  7. 7
    The Riftbreaker — Steam game cover

    The Riftbreaker

    Single-player alternative to Sea of Change — playable solo, no multiplayer required. Shares Action and Strategy with Sea of Change.

    The Riftbreaker is a solo or Co-op base-building, survival game with Action-RPG elements for up to 4 players. Hack & slash countless hordes of enemies. Build up your base, craft powerful weapons and research new inventions to survive.

    2021ActionStrategyIndie11.99 USDDeck PlayableSingle-playerSimilar games →
  8. 8
    The Wild Age — Steam game cover

    The Wild Age

    Single-player alternative to Sea of Change — playable solo, no multiplayer required. Shares Strategy and Indie with Sea of Change.

    The Wild Age is a micromanagement strategy game with tower defense gameplay mechanics. The game is designed mainly for a peaceful and relaxed gaming experience that offers a break from the busy realities of life.

    2020StrategyIndieSimulation12.99 USDSingle-playerSimilar games →