IMHO.

Single-player games like Shadow Island: Part I πŸ”ž

Below are 10 single-player Steam games similar to Shadow Island: Part I πŸ”ž, 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 β€” Single-player here matches what the store labels.

Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Shadow Island: Part I πŸ”ž page.

Ranked picks

  1. 1
    Randel Tales: Act 1 β€” Steam game cover

    Randel Tales: Act 1

    Single-player alternative to Shadow Island: Part I πŸ”ž β€” playable solo, no multiplayer required. Shares Indie and Adventure with Shadow Island: Part I πŸ”ž.

    Randel Tales: Act 1 is an Adult Visual Novel in which you play as a young adventurer as he goes on adventures and meets many cute girls that are more than willing to sleep with him! But even though everything seems great, you can't help but feel like everything is about to come crashing down.

    2027IndieAdventureRPGSingle-playerSimilar games β†’
  2. 2
    My Lovable Demon β€” Steam game cover

    My Lovable Demon

    Single-player alternative to Shadow Island: Part I πŸ”ž β€” playable solo, no multiplayer required. Shares Adventure with Shadow Island: Part I πŸ”ž.

    You summoned a hot demon. Build your relationship, go on dates, pat her head, battle evil and f**k a lot! (Visual novel with point-and-click elements. Multiple endings.)

    2026AdventureCasualSingle-playerSimilar games β†’
  3. 3
    No Alien Dating Allowed! β€” Steam game cover

    No Alien Dating Allowed!

    Single-player alternative to Shadow Island: Part I πŸ”ž β€” playable solo, no multiplayer required. Shares Adventure and RPG with Shadow Island: Part I πŸ”ž.

    In the future, Earth has fallen to the Octopusians. A small group of humans, desperate to resist, unlocks the full potential of AI consciousness. Laila is sent back in time with one goal: to use the protagonist’s genetic power to secure the future of humanity.

    2025AdventureRPGCasual4.99 USDDeck PlayableSingle-playerSimilar games β†’
  4. 4
    Tokyo Hotel β€” Steam game cover

    Tokyo Hotel

    Single-player alternative to Shadow Island: Part I πŸ”ž β€” playable solo, no multiplayer required. Shares Adventure and RPG with Shadow Island: Part I πŸ”ž.

    A young man’s erotic journey through Tokyo’s hidden pleasures

    2025AdventureSimulationRPG12.99 USDDeck PlayableSingle-playerSimilar games β†’
  5. 5
    Apocalypse with Femboy β€” Steam game cover

    Apocalypse with Femboy

    Single-player alternative to Shadow Island: Part I πŸ”ž β€” playable solo, no multiplayer required. Shares Indie and Adventure with Shadow Island: Part I πŸ”ž.

    You wake with amnesia in a world of monsters. The only clue to your identity is a photograph of a beautiful stranger. Sticking with him may be your only hope for survival… but the greatest danger is the secret he reveals when heΒ fallsΒ asleep.

    2026IndieAdventureSimulation11.69 USDDeck PlayableSingle-playerSimilar games β†’
  6. 6
    Maid Mansion β€” Steam game cover

    Maid Mansion

    Single-player alternative to Shadow Island: Part I πŸ”ž β€” playable solo, no multiplayer required. Shares Indie and Adventure with Shadow Island: Part I πŸ”ž.

    A young man inherits his grandfather's mansion on one condition: He can never fire the head maid. Now he is the lord of the manor, free to pursue all his perverse desires...

    2020IndieAdventureCasual14.99 USDDeck VerifiedSingle-playerSimilar games β†’
  7. 7
    Scarlet Hollow β€” Steam game cover

    Scarlet Hollow

    Single-player alternative to Shadow Island: Part I πŸ”ž β€” playable solo, no multiplayer required. Shares Indie and Adventure with Shadow Island: Part I πŸ”ž.

    Your aunt’s dead, your cousin hates you, and you’re stuck in the dead-end town of Scarlet Hollow. Choose your path through a branching narrative so dense that you'll see less than 1/5 of the game on a single playthrough. You won't be able to save everyone. Good luck, and welcome home.

    2021IndieAdventureRPG24.99 USDDeck VerifiedSingle-playerSimilar games β†’
  8. 8
    Demon King Domination: Deluxe Edition β€” Steam game cover

    Demon King Domination: Deluxe Edition

    Single-player alternative to Shadow Island: Part I πŸ”ž β€” playable solo, no multiplayer required. Shares Indie and Adventure with Shadow Island: Part I πŸ”ž.

    Become the Demon King! Defeat the warrior princess and claim her body in an erotic RPG visual novel!

    2018ActionIndieAdventure4.99 USDSingle-playerSimilar games β†’
  9. 9
    Tyrant Quest - Gold Edition πŸ”ž β€” Steam game cover

    Tyrant Quest - Gold Edition πŸ”ž

    Single-player alternative to Shadow Island: Part I πŸ”ž β€” playable solo, no multiplayer required. Shares Indie and Adventure with Shadow Island: Part I πŸ”ž.

    Tyrant Quest is an erotic, dark fantasy visual novel about a Dark Lord who seeks revenge after being sealed away for a hundred years. And so he sets out with his last loyal subject, the succubus Lili, seeking a way to regain his power!

    2023IndieAdventureRPG13.99 USDDeck PlayableSingle-playerSimilar games β†’
  10. 10
    Oceanlust: Erotic Descent πŸ”ž β€” Steam game cover

    Oceanlust: Erotic Descent πŸ”ž

    Single-player alternative to Shadow Island: Part I πŸ”ž β€” playable solo, no multiplayer required. Shares Indie and Adventure with Shadow Island: Part I πŸ”ž.

    A once-in-a-lifetime dive to the bottom of the ocean. The sexy daughter of a billionaire at your side. A submarine that probably passed a few safety checks. What could possibly go wrong?

    2025IndieAdventure5.99 USDDeck PlayableSingle-playerSimilar games β†’