IMHO.

Single-player games like Mysteries Under Lake Ophelia

Below are 10 single-player Steam games similar to Mysteries Under Lake Ophelia, 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 Mysteries Under Lake Ophelia page.

Ranked picks

  1. 1
    PicoCat — Steam game cover

    PicoCat

    Single-player alternative to Mysteries Under Lake Ophelia — playable solo, no multiplayer required. Shares Casual with Mysteries Under Lake Ophelia.

    This is a cozy, relaxing idle game that can float anywhere on your screen. A group of adorable stray cats live on this island. Care for them and give them forever homes, so you can enjoy heart‑warming cat‑petting moments amid your busy daily life.

    2026SimulationCasualSingle-playerSimilar games →
  2. 2
    Happy Pet — Steam game cover

    Happy Pet

    Single-player alternative to Mysteries Under Lake Ophelia — playable solo, no multiplayer required. Shares Casual with Mysteries Under Lake Ophelia.

    Happy is a sweet little cat who needs you, even when you're away. He waits to play, eat, chat… so don’t leave him alone too long. He might feel forgotten.

    2025IndieSimulationCasual1.99 USDSingle-playerSimilar games →
  3. 3
    Seeds of Pain — Steam game cover

    Seeds of Pain

    Single-player alternative to Mysteries Under Lake Ophelia — playable solo, no multiplayer required. Shares Adventure with Mysteries Under Lake Ophelia.

    A group of kids decide to leave the floating island they live on to go and explore a colossal world tree. They don't know yet how dangerous this choice will be. Feel their fear and try to survive in this Visual Novel with resource management systems.

    StrategyAdventureSingle-playerSimilar games →
  4. 4
    The Bagman — Steam game cover

    The Bagman

    Single-player alternative to Mysteries Under Lake Ophelia — playable solo, no multiplayer required. Shares Adventure with Mysteries Under Lake Ophelia.

    The bagman is an authentic retro 16-bit horror point and click/survival horror that layers in stealth, commandable NPCS, and gratuitous slasher gore! Time and events continually tick forward, and any of your friends can die. Many paths to follow, multiple endings. Will you survive?

    IndieAdventureSingle-playerSimilar games →
  5. 5
    Void Light — Steam game cover

    Void Light

    Single-player alternative to Mysteries Under Lake Ophelia — playable solo, no multiplayer required. Shares Adventure and Casual with Mysteries Under Lake Ophelia.

    Survive. Endure. Repeat. Avoid creatures and survive as long as possible across various star systems.

    2026ActionIndieAdventure2.99 USDSingle-playerSimilar games →
  6. 6
    Fishing Vacation — Steam game cover

    Fishing Vacation

    Single-player alternative to Mysteries Under Lake Ophelia — playable solo, no multiplayer required. Shares Adventure and Casual with Mysteries Under Lake Ophelia.

    A Game Boy styled fishing horror adventure

    2022IndieAdventureSimulation1.99 USDSingle-playerSimilar games →
  7. 7
    Scarred Stars: Traumatic Edition — Steam game cover

    Scarred Stars: Traumatic Edition

    Single-player alternative to Mysteries Under Lake Ophelia — playable solo, no multiplayer required. Shares Adventure with Mysteries Under Lake Ophelia.

    Scarred Stars: Traumatic edition begins by you entering an amusement park from hell and you must escape with your sanity - if you can! Adventure through a ruined amusement park with a dark past. Escape monsters and discover multiple endings in this survival horror game!

    2021ActionIndieAdventure1.99 USDSingle-playerSimilar games →
  8. 8
    Aquora — Steam game cover

    Aquora

    Single-player alternative to Mysteries Under Lake Ophelia — playable solo, no multiplayer required. Shares Casual with Mysteries Under Lake Ophelia.

    Breed, raise, and sell pixel fish in your own living aquarium. Over 400 quadrillion possible fish. Chase ultra-rare mythic traits through generations of genetics, decorate your tank, fish the river, and grow a humble starter pair into an aquatic empire, even while you're away.

    2027IndieSimulationCasualSingle-playerSimilar games →
  9. 9
    Fatum Betula — Steam game cover

    Fatum Betula

    Single-player alternative to Mysteries Under Lake Ophelia — playable solo, no multiplayer required. Shares Adventure and Casual with Mysteries Under Lake Ophelia.

    Placed in a world without change, you must create fate by watering an ancient plant. Determine a future and live with it.

    2020IndieAdventureCasual4.99 USDDeck PlayableSingle-playerSimilar games →
  10. 10
    Dread X Collection 3 — Steam game cover

    Dread X Collection 3

    Single-player alternative to Mysteries Under Lake Ophelia — playable solo, no multiplayer required.

    Experience 12 all-new games made exclusively for this unique horror anthology. Explore a mysterious castle that changes as you play. Keep your wits about you as the line between cute and creepy begins to blur. Uncover the next chapter in the ongoing Dread X Collection storyline.

    2020Action9.99 USDDeck PlayableSingle-playerSimilar games →