IMHO.

Single-player games like The Sixth Sin

Below are 10 single-player Steam games similar to The Sixth Sin, 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 The Sixth Sin page.

Ranked picks

  1. 1
    Alchemists — Steam game cover

    Alchemists

    Single-player alternative to The Sixth Sin — playable solo, no multiplayer required. Shares Action and Indie with The Sixth Sin.

    Alchemists is a Co-Op horror game that can be played with at least a minimum of 1 and a maximum of 4 players. Your goal is to expel the evil spirit from cursed places by completing the 4 Element ritual. Destroy the monster alone or with your team using your tools.

    2025ActionIndieAdventure5.99 USDSingle-playerSimilar games →
  2. 2
    Black Light Kills — Steam game cover

    Black Light Kills

    Single-player alternative to The Sixth Sin — playable solo, no multiplayer required. Shares Action and Indie with The Sixth Sin.

    Welcome to the darkness of the town; here, you walk a fine line between reality and dreams, questioning your sanity. Black Light Kills takes you deep into Aiden’s mind, where nightmares begin as reality fades.

    2025ActionIndieAdventure3.99 USDSingle-playerSimilar games →
  3. 3
    Desdemona — Steam game cover

    Desdemona

    Single-player alternative to The Sixth Sin — playable solo, no multiplayer required. Shares Action and Indie with The Sixth Sin.

    Gather your courage and face the ghost danger.Clean the curses and hunt the ghost!

    2021ActionIndieAdventure9.99 USDSingle-playerSimilar games →
  4. 4
    Color Fear — Steam game cover

    Color Fear

    Single-player alternative to The Sixth Sin — playable solo, no multiplayer required. Shares Action and Indie with The Sixth Sin.

    The Scariest Horror game you will ever experience. Today on The Color Fun Coloring Show they want viewers to help them find out who is breaking into their house! Survive each night against the Intruders and the Horror that comes from The Color Fun Coloring Show!

    2026ActionIndieAdventureSingle-playerSimilar games →
  5. 5
    The Ice Cream Shop — Steam game cover

    The Ice Cream Shop

    Single-player alternative to The Sixth Sin — playable solo, no multiplayer required. Shares Action and Indie with The Sixth Sin.

    The Evil Presence is an immersive first-person psychological horror game. After moving into a new house, a man experiences supernatural occurrences and discovers the untold history of the residence.

    ActionIndieAdventureSingle-playerSimilar games →
  6. 6
    Heritage — Steam game cover

    Heritage

    Single-player alternative to The Sixth Sin — playable solo, no multiplayer required. Shares Action and Indie with The Sixth Sin.

    Heritage is a psychological horror game where you dive into the dark secrets of a forgotten mansion. Explore shadowy rooms, solve puzzles, and uncover the hidden truth behind a family tragedy, all within a tense and eerie atmosphere.

    2024ActionIndieAdventure2.99 USDSingle-playerSimilar games →
  7. 7
    Quest room — Steam game cover

    Quest room

    Single-player alternative to The Sixth Sin — playable solo, no multiplayer required. Shares Indie and Adventure with The Sixth Sin.

    The quest room is a location from which you need to get out by interacting with objects and using various clues. But be careful, you are not alone in this room.

    2022IndieAdventure9.99 USDSingle-playerSimilar games →
  8. 8
    Nulla Via — Steam game cover

    Nulla Via

    Single-player alternative to The Sixth Sin — playable solo, no multiplayer required. Shares Action and Indie with The Sixth Sin.

    NULLA VIA is a WW2 psychological horror set in a preserved, abandoned war town. Explore silent ruins, bunkers, and mass graves where life was erased. Shadows cannot be killed by bullets alone. Use your camera, your weapons, and your sanity to survive. This town was never rebuilt for a reason.

    2026ActionIndieAdventure11.99 USDSingle-playerSimilar games →
  9. 9
    Bulletproof Tank Adventure — Steam game cover

    Bulletproof Tank Adventure

    Single-player alternative to The Sixth Sin — playable solo, no multiplayer required. Shares Action and Indie with The Sixth Sin.

    In a post-apocalyptic world, engage in a thrilling 3D tank battle game, fighting zombies and AI robots. Navigate challenging terrains with your tank and defeat enemies using powerful weapons. A struggle for strategy, danger, and survival awaits you!

    2025ActionIndieAdventure0.99 USDSingle-playerSimilar games →
  10. 10
    Enlil: Rise Of the End — Steam game cover

    Enlil: Rise Of the End

    Single-player alternative to The Sixth Sin — playable solo, no multiplayer required. Shares Action and Indie with The Sixth Sin.

    In a stunning open world brimming with high-quality graphics, build your own walls, gates, and traps; gather valuable loot; choose one of five mighty spells to obliterate your foes; command your army—and in a deep, immersive narrative, bring an end to Anzu’s dark reign!

    2025ActionStrategyIndie2.49 USDSingle-playerSimilar games →