IMHO.

Single-player games like Once upon a time there was a twin-tailed sister princess who was very unfriendly.

Below are 15 single-player Steam games similar to Once upon a time there was a twin-tailed sister princess who was very unfriendly., 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 Once upon a time there was a twin-tailed sister princess who was very unfriendly. page.

Ranked picks

  1. 1
    Red Head - To The Rescue — Steam game cover

    Red Head - To The Rescue

    Single-player alternative to Once upon a time there was a twin-tailed sister princess who was very unfriendly. — playable solo, no multiplayer required. Shares Action with Once upon a time there was a twin-tailed sister princess who was very unfriendly..

    Rescue the gem stolen by the evil sorcerer Vamooth and restore peace to the kingdom. Prepare yourself to face a wide variety of enemies, such as slimes, evil trees, and giant bosses that occupy almost the entire screen.

    2023ActionIndieAdventure1.99 USDSingle-playerSimilar games →
  2. 2
    Blade Crusade — Steam game cover

    Blade Crusade

    Single-player alternative to Once upon a time there was a twin-tailed sister princess who was very unfriendly. — playable solo, no multiplayer required. Shares Action with Once upon a time there was a twin-tailed sister princess who was very unfriendly..

    Put your platforming and fighting skills to the test in Blade Crusade, where each of the 200+ levels may take you seconds or hours to beat! Use your growing arsenal of moves to slice through enemies and dash through levels at breakneck speed.

    2022ActionIndie9.99 USDSingle-playerSimilar games →
  3. 3
    Rise of the High Elf King: A LEGACY OF BLOOD — Steam game cover

    Rise of the High Elf King: A LEGACY OF BLOOD

    Single-player alternative to Once upon a time there was a twin-tailed sister princess who was very unfriendly. — playable solo, no multiplayer required. Shares Action with Once upon a time there was a twin-tailed sister princess who was very unfriendly..

    Take on the role of our protagonist in his epic rise to power to become High Elf King in this 2D side scroller set in a world of magic and fantasy.

    2023ActionAdventure2.99 USDSingle-playerSimilar games →
  4. 4
    The Malice Kingdom — Steam game cover

    The Malice Kingdom

    Single-player alternative to Once upon a time there was a twin-tailed sister princess who was very unfriendly. — playable solo, no multiplayer required. Shares Action with Once upon a time there was a twin-tailed sister princess who was very unfriendly..

    Explore an ancient world in The Malice Kingdom. Travel the rich and diverse landscape filled with ancient ruins, foreboding forests, and haunting mansions. Discover powerful weapons, befriend Whimsical characters, and uncover the dormant secret within the kingdom.

    2023ActionIndieAdventure1.99 USDSingle-playerSimilar games →
  5. 5
    Russian Reality — Steam game cover

    Russian Reality

    Single-player alternative to Once upon a time there was a twin-tailed sister princess who was very unfriendly. — playable solo, no multiplayer required. Shares Action with Once upon a time there was a twin-tailed sister princess who was very unfriendly..

    Meet the new satirical beat em up on the theme of Russia! You will find a deep storyline and a unique combat system in which you can make your own combinations based on the main hits and special moves.

    2020ActionIndieAdventure0.76 USDSingle-playerSimilar games →
  6. 6
    Argol - Kronoss' Castle — Steam game cover

    Argol - Kronoss' Castle

    Single-player alternative to Once upon a time there was a twin-tailed sister princess who was very unfriendly. — playable solo, no multiplayer required. Shares Action with Once upon a time there was a twin-tailed sister princess who was very unfriendly..

    Platformer action game, mixing gothic and mythological atmospheres.

    2022ActionIndieAdventure4.99 USDSingle-playerSimilar games →
  7. 7
    Oculant — Steam game cover

    Oculant

    Single-player alternative to Once upon a time there was a twin-tailed sister princess who was very unfriendly. — playable solo, no multiplayer required. Shares Action with Once upon a time there was a twin-tailed sister princess who was very unfriendly..

    Oculant is a classic retro action adventure platformer in a dark-fantasy world. Travel through the kingdom and discover what lies within the kingdom's dark secret.

    2023ActionAdventureCasual4.99 USDSingle-playerSimilar games →
  8. 8
    Dungeonoid — Steam game cover

    Dungeonoid

    Single-player alternative to Once upon a time there was a twin-tailed sister princess who was very unfriendly. — playable solo, no multiplayer required. Shares Action with Once upon a time there was a twin-tailed sister princess who was very unfriendly..

    Dungeonoid is a brick breaker with a classic RPG system. Play solo or with a friend over 40 challenging levels, build up your skills and use your special powers to defeat the Demon Master.

    2022ActionIndie6.99 USDSingle-playerSimilar games →
  9. 9
    Tower Offence! たわーおふぇんす! — Steam game cover

    Tower Offence! たわーおふぇんす!

    Single-player alternative to Once upon a time there was a twin-tailed sister princess who was very unfriendly. — playable solo, no multiplayer required. Shares Action with Once upon a time there was a twin-tailed sister princess who was very unfriendly..

    "Attacks aggressively by build a lot of towers"It's a consept of this game. You can stack friend units any number of people,without limitation. "Strength in numbers" is the key to victory!

    2017ActionIndie8.99 USDSingle-playerSimilar games →
  10. 10
    LethalCrisis リーサルクライシス — Steam game cover

    LethalCrisis リーサルクライシス

    Single-player alternative to Once upon a time there was a twin-tailed sister princess who was very unfriendly. — playable solo, no multiplayer required. Shares Action with Once upon a time there was a twin-tailed sister princess who was very unfriendly..

    横2Dでありながら「方向自由のエアダッシュ+多少敵弾をはじく」アサルトにより 敵本体に突撃+連続斬撃を繰り広げます!! *This game currently only exists in Japanese version.  However, there are people who have created unofficial English patches. https://youtu.be/k55OrMFQ7q0

    2023ActionIndieRPG17.99 USDSingle-playerSimilar games →
  11. 11
    Lethal Crisis  Proto Sphere リーサルクライシスプロトスフィア — Steam game cover

    Lethal Crisis Proto Sphere リーサルクライシスプロトスフィア

    Single-player alternative to Once upon a time there was a twin-tailed sister princess who was very unfriendly. — playable solo, no multiplayer required. Shares Action with Once upon a time there was a twin-tailed sister princess who was very unfriendly..

    横2Dの世界でランダムダンジョンを採用!重力ありでも空中戦が得意だからこそ、どこにゴールがあろうが問題なく突き進める! 要らなくなったアイテムはTipに変換して、初期性能の強化を獲得! 周回しながら力を蓄え、全200ステージに潜む強敵達を撃破せよ!

    2023ActionIndieRPG8.99 USDSingle-playerSimilar games →
  12. 12
    Lethal Operation Episode 1 healer Rugitta — Steam game cover

    Lethal Operation Episode 1 healer Rugitta

    Single-player alternative to Once upon a time there was a twin-tailed sister princess who was very unfriendly. — playable solo, no multiplayer required. Shares Action with Once upon a time there was a twin-tailed sister princess who was very unfriendly..

    キャラをじっくり育てながら広い世界を冒険する――。 そんなSTGがあってもいいじゃないか!! …というのがこのゲームのコンセプト。 ブレイクによって敵弾を消すことができ、 レベルと装備で強くなるので、STGが苦手な人でも凶悪弾幕ボスを間違いなく倒せるようになります!

    2023ActionIndieRPG8.99 USDSingle-playerSimilar games →
  13. 13
    Lethal Operation Episode 2 destroyer Rei — Steam game cover

    Lethal Operation Episode 2 destroyer Rei

    Single-player alternative to Once upon a time there was a twin-tailed sister princess who was very unfriendly. — playable solo, no multiplayer required. Shares Action with Once upon a time there was a twin-tailed sister princess who was very unfriendly..

    キャラをじっくり育てながら広い世界を冒険する――。 そんなSTGがあってもいいじゃないか!! …というのがこのゲームのコンセプト。 「ルギッタ編」と比べシューティング寄りで、すべて束ねた火力はまさに一撃必殺。 大量の敵を次々に破壊していく爽快感をお楽しみ下さい!

    2023ActionIndieRPG8.99 USDSingle-playerSimilar games →
  14. 14
    Lethal Operation Episode 3 Lethal Arms of Justice — Steam game cover

    Lethal Operation Episode 3 Lethal Arms of Justice

    Single-player alternative to Once upon a time there was a twin-tailed sister princess who was very unfriendly. — playable solo, no multiplayer required. Shares Action with Once upon a time there was a twin-tailed sister princess who was very unfriendly..

    キャラをじっくり育てながら広い世界を冒険する――。 そんなSTGの最終編。ショットを合成して、いいとこどりのショットも作れる! シリーズ最強の敵たちに最強の武器やスキルの組み合わせで対抗し、 この物語の真実に辿り着いてください―

    2023ActionIndieRPG17.99 USDSingle-playerSimilar games →
  15. 15
    SUIKA VS MECHASUIKA — Steam game cover

    SUIKA VS MECHASUIKA

    Single-player alternative to Once upon a time there was a twin-tailed sister princess who was very unfriendly. — playable solo, no multiplayer required. Shares Action with Once upon a time there was a twin-tailed sister princess who was very unfriendly..

    本作は東方プロジェクト原作の特撮風二次創作。 100mオーバーの怪獣災害「スイカ」を撃退すべく「メカスイカ」で戦います。 メカスイカは、両手・頭・体が好き勝手に同時行動可能! さらに改造で数十の必殺技を搭載し、ビルを破壊しながら大暴れするぞ!

    2024ActionIndieRPG8.99 USDSingle-playerSimilar games →