IMHO.

Single-player games like Project Oasis

Below are 8 single-player Steam games similar to Project Oasis, 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 Project Oasis page.

Ranked picks

  1. 1
    鬼人偶/Ghost Doll — Steam game cover

    鬼人偶/Ghost Doll

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

    "If this continues, mother will......" Before the collapse of winnie, can return to the mother's side?Find a way to escape this place!

    2022IndieAdventureRPG4.99 USDSingle-playerSimilar games →
  2. 2
    Physical Exorcism: Case 01 — Steam game cover

    Physical Exorcism: Case 01

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

    When the two exorcists, Brucie and Jade, were starving to death, a high school student named Lucy was kind enough to share food with them and hire them to protect her friend from an evil spirit. However, it turns out that the spirit has an unusual past.

    2018IndieAdventureRPG2.99 USDSingle-playerSimilar games →
  3. 3
    异化之恶〇Abnormal Treatment — Steam game cover

    异化之恶〇Abnormal Treatment

    Single-player alternative to Project Oasis — playable solo, no multiplayer required. Shares Indie and Free To Play with Project Oasis.

    Strange events occur at a sanatorium for those with unusual abilities. Follow clues, solve puzzles, and uncover the truth. What will be released when all secrets are revealed? Goodness? Or… pure ”EVIL”?

    2019IndieAdventureRPGFreeSingle-playerSimilar games →
  4. 4
    A.I-Mnemosyne 記憶女神 — Steam game cover

    A.I-Mnemosyne 記憶女神

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

    A.I-記憶女神為小品的視覺遊戲,主旨關於愛與探討存在的意義。 故事以一個普通的人(我),和明星女友繆妮的日常作為起點。 人類對於各方面的科技研究到了巔峰,卻也因為過度的開發與研究,埋下了危機的種子......

    2020IndieRPGCasual1.99 USDSingle-playerSimilar games →
  5. 5
    黑色花与红山羊 / Black Datura & Red Goat — Steam game cover

    黑色花与红山羊 / Black Datura & Red Goat

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

    苏醒之时,他正处于昏暗的木屋之中。自己的身份、过去的经历,全都无法想起。很快,他发觉自己正处于一个异常的空间,到处都是谜题和陷阱,还有一些古怪的居民。在前行的途中,也不断与同样被困在此处的人成为了同伴。道路的前方,是救赎,还是绝望?这是一个围绕着“诅咒”与“救赎”的故事。

    2020IndieAdventureRPG7.99 USDSingle-playerSimilar games →
  6. 6
    Alicemare — Steam game cover

    Alicemare

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

    Alicemare is a somehow familiar yet totally unique adventure game infused with subtle hints of horror, created by △○□× (Miwashiba) using the WOLF RPG Editor.

    2016IndieAdventure2.99 USDDeck PlayableSingle-playerSimilar games →
  7. 7
    OneShot — Steam game cover

    OneShot

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

    OneShot is a surreal top down Puzzle/Adventure game with unique gameplay capabilities. You are to guide a child through a mysterious world on a mission to restore its long-dead sun. The world knows you exist.

    2016IndieAdventureCasual5.99 USDSingle-playerSimilar games →
  8. 8
    Sentience: The Android's Tale — Steam game cover

    Sentience: The Android's Tale

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

    You can remember nothing before this moment. Your existence begins with a keystroke followed by the flick of a switch. Electrical power streams into your neural network, and you are alive.

    2017IndieAdventure4.99 USDSingle-playerSimilar games →