IMHO.

Single-player games like Causal Effect

Below are 8 single-player Steam games similar to Causal Effect, 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 Causal Effect page.

Ranked picks

  1. 1
    《道格拉斯警督的日记》 — Steam game cover

    《道格拉斯警督的日记》

    Single-player alternative to Causal Effect — playable solo, no multiplayer required. Shares Indie and RPG with Causal Effect.

    This is a detective game where you play as a middle-aged inspector searching for a terrifying serial killer in an isolated village. However, as a player, if you uncover the killer’s motives, you might consider whether to cooperate with them to achieve their goal of "killing THE time."

    2025IndieAdventureSimulation0.99 USDSingle-playerSimilar games →
  2. 2
    At His Grave — Steam game cover

    At His Grave

    Single-player alternative to Causal Effect — playable solo, no multiplayer required. Shares Indie and Casual with Causal Effect.

    Time backtracking secret room decryption game, analyze the character dialogue, find the key to decryption, complete the needs to leave the room. In the end all regret, go back to the past, looking for clues to make up for regret.

    2024IndieCasual0.99 USDSingle-playerSimilar games →
  3. 3
    彼岸之旅 — Steam game cover

    彼岸之旅

    Single-player alternative to Causal Effect — playable solo, no multiplayer required. Shares Indie and RPG with Causal Effect.

    Travels to a different world, chooses to join different forces, made your character strong, defeat all enemies who stand against you

    2024IndieAdventureSimulation3.99 USDSingle-playerSimilar games →
  4. 4
    我的一个多重人格朋友 — Steam game cover

    我的一个多重人格朋友

    Single-player alternative to Causal Effect — playable solo, no multiplayer required. Shares Indie and RPG with Causal Effect.

    This is an AVG game that involves reasoning and decryption. He Zhou has 7 different personalities, which alternate seven days a week. Players will play as a detective and deduce the truth behind the horrifying cases surrounding He Zhou through the diary he left behind.

    2025IndieAdventureSimulation0.99 USDSingle-playerSimilar games →
  5. 5
    Di Renjie:  The Legendary Investigator — Steam game cover

    Di Renjie: The Legendary Investigator

    Single-player alternative to Causal Effect — playable solo, no multiplayer required. Shares Indie and RPG with Causal Effect.

    Become a legendary detective of ancient China! In "Di Renjie: The Legendary Investigator", play as Di Renjie, solving thrilling cases across Bianzhou and Bingzhou in the Tang Dynasty and uncovering the truth.

    2027IndieRPGSingle-playerSimilar games →
  6. 6
    DEAR SUSPECT — Steam game cover

    DEAR SUSPECT

    Single-player alternative to Causal Effect — playable solo, no multiplayer required. Shares RPG with Causal Effect.

    Confined to a woodland cabin in the 1906 Rockies, your only way to solve a family massacre is by letters. The one responsible is already on the move — silence and madness claim your contacts, and you may be next. He will find you, and death resets the world; only your notebook carries on.

    AdventureRPGSingle-playerSimilar games →
  7. 7
    迷雾之夏-The Vigilant Villa — Steam game cover

    迷雾之夏-The Vigilant Villa

    Single-player alternative to Causal Effect — playable solo, no multiplayer required. Shares Indie and RPG with Causal Effect.

    The Vigilant Villa is a plots-oriented, texts-based AVG adventure game inheriting the classic “A locked room mystery" story mode. Where the game heads towards is completely decided by player’s own deductions and choices.

    2020IndieAdventureRPGDeck PlayableSingle-playerSimilar games →
  8. 8
    1997 — Steam game cover

    1997

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

    Detective visual novel about mysteries of rural Russian town in 90-s, anime style.

    2023IndieAdventure9.99 USDSingle-playerSimilar games →