IMHO.

Single-player games like Lethal Operation Episode 3 Lethal Arms of Justice

Below are 13 single-player Steam games similar to Lethal Operation Episode 3 Lethal Arms of Justice, 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 Lethal Operation Episode 3 Lethal Arms of Justice page.

Ranked picks

  1. 1
    Lethal Operation Episode 1 healer Rugitta — Steam game cover

    Lethal Operation Episode 1 healer Rugitta

    Single-player alternative to Lethal Operation Episode 3 Lethal Arms of Justice — playable solo, no multiplayer required. Shares Action and Indie with Lethal Operation Episode 3 Lethal Arms of Justice.

    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 →
  2. 2
    Lethal Operation Episode 2 destroyer Rei — Steam game cover

    Lethal Operation Episode 2 destroyer Rei

    Single-player alternative to Lethal Operation Episode 3 Lethal Arms of Justice — playable solo, no multiplayer required. Shares Action and Indie with Lethal Operation Episode 3 Lethal Arms of Justice.

    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 →
  3. 3
    DRAINUS — Steam game cover

    DRAINUS

    Single-player alternative to Lethal Operation Episode 3 Lethal Arms of Justice — playable solo, no multiplayer required. Shares Action and Indie with Lethal Operation Episode 3 Lethal Arms of Justice.

    This is a side-scrolling shooting game in which you take control of the "Drainus", the Kharlal Empire's most cutting-edge fighter with the ability to absorb energy bullets, and take down the enemy ships zipping through space.

    2022ActionIndie14.99 USDDeck VerifiedSingle-playerSimilar games →
  4. 4
    BLADECHIMERA — Steam game cover

    BLADECHIMERA

    Single-player alternative to Lethal Operation Episode 3 Lethal Arms of Justice — playable solo, no multiplayer required. Shares Action and Indie with Lethal Operation Episode 3 Lethal Arms of Justice.

    Explore a dark and sinister Osaka as the Demon Hunter Shin. Battle demons, regain lost skills, and uncover the truth of your forgotten past in this exciting occult-inspired cyberpunk metroidvania.

    2025ActionIndie14.99 USDDeck VerifiedSingle-playerSimilar games →
  5. 5
    Drifting Lands — Steam game cover

    Drifting Lands

    Single-player alternative to Lethal Operation Episode 3 Lethal Arms of Justice — playable solo, no multiplayer required. Shares Action and Indie with Lethal Operation Episode 3 Lethal Arms of Justice.

    Drifting Lands is an hybrid of classical horizontal shoot'em'up with a lot of strong gameplay elements coming straight from the action-RPG genre. If you want an original diablo-like game or you want a different kind of shoot'em'up, you're in the right place!

    2017ActionIndieRPG4.99 USDSingle-playerSimilar games →
  6. 6
    Valdis Story: Abyssal City — Steam game cover

    Valdis Story: Abyssal City

    Single-player alternative to Lethal Operation Episode 3 Lethal Arms of Justice — playable solo, no multiplayer required. Shares Action and Indie with Lethal Operation Episode 3 Lethal Arms of Justice.

    Assume the role of Wyatt in this Action/Exploration Platformer as you explore the ruins of a holy city that was lost many years ago. Battle various types of demons, angels, and a new threat known only as the “Ferals”, using swordsmanship, martial arts, and sorcery.

    2013ActionIndieRPG14.99 USDDeck VerifiedSingle-playerSimilar games →
  7. 7
    ARMED SEVEN — Steam game cover

    ARMED SEVEN

    Single-player alternative to Lethal Operation Episode 3 Lethal Arms of Justice — playable solo, no multiplayer required. Shares Action and Indie with Lethal Operation Episode 3 Lethal Arms of Justice.

    The year is 1989. 12 years have passed since the Gogoh Army’s invasion of Earth. Exposure to alien technology during the war enabled Earth’s own technologies to take massive leaps forward. International conflict that was previously rife in the history of mankind fell to an all-time low, and the Earth Federation was established as a...

    2015ActionIndie2.49 USDDeck VerifiedSingle-playerSimilar games →
  8. 8
    Death's Gambit: Afterlife — Steam game cover

    Death's Gambit: Afterlife

    Single-player alternative to Lethal Operation Episode 3 Lethal Arms of Justice — playable solo, no multiplayer required. Shares Action and Indie with Lethal Operation Episode 3 Lethal Arms of Justice.

    Death's Gambit: Afterlife is a challenging 2D action platformer with deep RPG elements. As an agent of Death bound to his service, unravel the mystery of Siradon and discover the true price of immortality.

    2018ActionIndieAdventure19.99 USDDeck VerifiedSingle-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 Lethal Operation Episode 3 Lethal Arms of Justice — playable solo, no multiplayer required. Shares Action and Indie with Lethal Operation Episode 3 Lethal Arms of Justice.

    "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 Lethal Operation Episode 3 Lethal Arms of Justice — playable solo, no multiplayer required. Shares Action and Indie with Lethal Operation Episode 3 Lethal Arms of Justice.

    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 Lethal Operation Episode 3 Lethal Arms of Justice — playable solo, no multiplayer required. Shares Action and Indie with Lethal Operation Episode 3 Lethal Arms of Justice.

    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
    Once upon a time there was a twin-tailed sister princess who was very unfriendly. — Steam game cover

    Once upon a time there was a twin-tailed sister princess who was very unfriendly.

    Single-player alternative to Lethal Operation Episode 3 Lethal Arms of Justice — playable solo, no multiplayer required. Shares Action with Lethal Operation Episode 3 Lethal Arms of Justice.

    敵もツインテールも超デカイ物体Xも、とにかく上に乗れさえすればなんだって、持ちあげてぶん投げることができる夢○場的アクションゲームです。 主人公の妹姫様の目の前に立ちふさがるのは、妹の所業に腹を立てていた姉姫様。 国の大事をそっちのけにした姉妹喧嘩が繰り広げられてしまいます。

    2023Action1.99 USDSingle-playerSimilar games →
  13. 13
    SUIKA VS MECHASUIKA — Steam game cover

    SUIKA VS MECHASUIKA

    Single-player alternative to Lethal Operation Episode 3 Lethal Arms of Justice — playable solo, no multiplayer required. Shares Action and Indie with Lethal Operation Episode 3 Lethal Arms of Justice.

    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 →