IMHO.

Free games like キラーの謎 -QUEST OF KILLER-

Below are 9 free-to-play Steam games similar to キラーの謎 -QUEST OF KILLER-, ranked by player overlap and content similarity. No purchase or Steam login required to view the list. Every pick is a full free-to-play title — not a demo, trial, or time-limited giveaway. imho.run's catalogue refreshes daily, so newly free or newly popular titles surface here without manual editing.

Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like キラーの謎 -QUEST OF KILLER- page.

Ranked picks

  1. 1
    Eternal Senia — Steam game cover

    Eternal Senia

    Free-to-play alternative to キラーの謎 -QUEST OF KILLER- — no purchase or trial window. Shares RPG with キラーの謎 -QUEST OF KILLER-.

    Thoughts and expectations ARPG

    2015ActionIndieRPGFreeDeck PlayableFree to playSimilar games →
  2. 2
    Saihate Station — Steam game cover

    Saihate Station

    Free-to-play alternative to キラーの謎 -QUEST OF KILLER- — no purchase or trial window. Shares RPG with キラーの謎 -QUEST OF KILLER-.

    An exploration/horror/adventure game about the codependent, love-hate relationship between two men.

    2025IndieAdventureRPGFreeDeck PlayableFree to playSimilar games →
  3. 3
    Moonring — Steam game cover

    Moonring

    Free-to-play alternative to キラーの謎 -QUEST OF KILLER- — no purchase or trial window. Shares RPG with キラーの謎 -QUEST OF KILLER-.

    A dark-fantasy, turn-based, retro-fusion of classic turn-based RPGs and roguelikes, all presented with a unique neon aesthetic.

    2023RPGFreeDeck VerifiedFree to playSimilar games →
  4. 4
    Die in the Dungeon: Origins — Steam game cover

    Die in the Dungeon: Origins

    Free-to-play alternative to キラーの謎 -QUEST OF KILLER- — no purchase or trial window. Shares RPG with キラーの謎 -QUEST OF KILLER-.

    Fight your way through a mysterious dungeon in this deck-building, turn-based roguelike game where you don't use cards, but DICE! Deal with enemies by combining dice on your board, boost their effects with magical relics, and discover the story behind Die in the Dungeon!

    2023StrategyIndieRPGFreeDeck VerifiedFree to playSimilar games →
  5. 5
    Hello Charlotte EP2: Requiem Aeternam Deo — Steam game cover

    Hello Charlotte EP2: Requiem Aeternam Deo

    Free-to-play alternative to キラーの謎 -QUEST OF KILLER- — no purchase or trial window. Shares RPG with キラーの謎 -QUEST OF KILLER-.

    A eulogy for happiness, and a lament for connection that never was.

    2016IndieAdventureRPGFreeFree to playSimilar games →
  6. 6
    AdventureQuest 3D — Steam game cover

    AdventureQuest 3D

    Free-to-play alternative to キラーの謎 -QUEST OF KILLER- — no purchase or trial window.

    The Void King is raising an army in secret. Death has chosen you as his champion to bring him down. Adventure & quest alongside your friends in this bizarre cross-platform MMORPG from the creators of the original, and comically-redundantly named... AdventureQuest! Weekly releases!

    2022ActionIndieAdventureFreeDeck PlayableFree to playSimilar games →
  7. 7
    Endless Sky — Steam game cover

    Endless Sky

    Free-to-play alternative to キラーの謎 -QUEST OF KILLER- — no purchase or trial window.

    Endless Sky is a 2D space trading and combat game inspired by the classic Escape Velocity series. Work your way up from a relatively wimpy shuttle, cargo ship, or fighter, to a highly upgraded and customized flagship or to a massive fleet of warships or freighters.

    2015ActionIndieAdventureFreeDeck PlayableFree to playSimilar games →
  8. 8
    The Elder Scrolls II: Daggerfall — Steam game cover

    The Elder Scrolls II: Daggerfall

    Free-to-play alternative to キラーの謎 -QUEST OF KILLER- — no purchase or trial window. Shares RPG with キラーの謎 -QUEST OF KILLER-.

    THE GREAT MACHINE AWAKENS

    2022ActionRPGFreeFree to playSimilar games →
  9. 9
    Neverwinter — Steam game cover

    Neverwinter

    Free-to-play alternative to キラーの謎 -QUEST OF KILLER- — no purchase or trial window. Shares RPG with キラーの謎 -QUEST OF KILLER-.

    Neverwinter is a free, action MMORPG based on the acclaimed Dungeons & Dragons fantasy roleplaying game. Epic stories, action combat and classic roleplaying await those heroes courageous enough to enter the fantastic world of Neverwinter!

    2013ActionAdventureMassively MultiplayerFreeDeck PlayableFree to playSimilar games →