IMHO.

Games like Rainbow Billy: The Curse of the Leviathan

If Rainbow Billy: The Curse of the Leviathan is your kind of game, the closest matches are Rizz Dungeon: Skeleton Key to My Heart, The Gardener and the Wild Vines and People of Note — picked from the ranked list below. Reviewers single out its befriending enemies through empathy, lane based combat system and contemplative. Each pick is ranked by what players of this game also play, shared genres and tags, and review-mined similarity — not a generic popularity list.

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About Rainbow Billy: The Curse of the Leviathan: Rainbow Billy: The Curse of the Leviathan is a wholesome, creature capture, 2.5D Adventure-Puzzle-Platformer with over 30 hours of gameplay!

2021IndieAdventureRPG19.99 USDDeck VerifiedMetacritic 81Windowsby ManaVoid Entertainment
Rainbow Billy: The Curse of the Leviathan — Steam game cover
Players highlight
Befriending enemies through empathyLane based combat systemMessage of kindness and self acceptanceContemplativeCozyEmotional

Players who liked Rainbow Billy: The Curse of the Leviathan also play

Steam players who put hours into Rainbow Billy: The Curse of the Leviathan also tend to own these titles — a signal called collaborative filtering. imho.run cross-references millions of library ownership patterns to surface games whose real audiences overlap, regardless of whether their genre tags match.

  1. Rizz Dungeon: Skeleton Key to My Heart

    WHY THIS

    Top pick for Rainbow Billy: The Curse of the Leviathan fans by collaborative filtering across millions of Steam libraries. Shares Indie and Adventure with Rainbow Billy: The Curse of the Leviathan.

    Fighting is hard, right? Let your party do it for you! Romance Monster Girls and traverse the Dungeon! Hopefully they'll all get along... right?

    2026ActionIndieAdventureSteam ↗
  2. The Gardener and the Wild Vines

    WHY THIS

    Shares an emotional mood with Rainbow Billy: The Curse of the Leviathan.

    Second-strongest match for Rainbow Billy: The Curse of the Leviathan fans by collaborative filtering across millions of Steam libraries. Shares Indie and Adventure with Rainbow Billy: The Curse of the Leviathan.

    Leap, slash, and climb your way to the top of magical towers in this wholesome platformer about a gay Gardener on a quest to rescue his love.

    2021IndieAdventure9.99 USDSteam ↗
  3. People of Note

    WHY THIS

    Shares a whimsical mood with Rainbow Billy: The Curse of the Leviathan.

    Third-strongest match for Rainbow Billy: The Curse of the Leviathan fans by collaborative filtering across millions of Steam libraries. Shares RPG with Rainbow Billy: The Curse of the Leviathan.

    In this turn-based RPG musical, join Cadence as she recruits an ensemble of musicians on her quest for stardom. Experience turn-based combat like never before, where each battle is a musical performance with evolving combat conditions and genre-bending mashup attacks!

    2026RPG24.99 USDDeck PlayableSteam ↗
  4. Mythic Mire

    WHY THIS

    Ranked #4 for Rainbow Billy: The Curse of the Leviathan fans by collaborative filtering across millions of Steam libraries. Shares Indie and Adventure with Rainbow Billy: The Curse of the Leviathan.

    A surreal RPG-adventure set in a world between dreams and nightmares. Explore strange environments with your trusty digital Pixie companions.

    2025IndieAdventureRPG9.99 USDSteam ↗
  5. Siralim Ultimate

    WHY THIS

    Shares a whimsical mood with Rainbow Billy: The Curse of the Leviathan.

    Ranked #5 for Rainbow Billy: The Curse of the Leviathan fans by collaborative filtering across millions of Steam libraries. Shares Indie and RPG with Rainbow Billy: The Curse of the Leviathan.

    Siralim Ultimate is a monster-catching, dungeon-crawling RPG with a ridiculous amount of depth. Summon over 1200 different creatures and travel through randomly generated dungeons to acquire resources, new creatures, and loot.

    2021StrategyIndieRPG19.99 USDDeck PlayableSteam ↗
  6. Celestial Hearts

    WHY THIS

    Shares an emotional mood with Rainbow Billy: The Curse of the Leviathan.

    Ranked #6 for Rainbow Billy: The Curse of the Leviathan fans by collaborative filtering across millions of Steam libraries. Shares Indie and RPG with Rainbow Billy: The Curse of the Leviathan.

    Celestial Hearts is a yuri jRPG featuring an ATB battle system and the story of a heartbroken young elf and an angel seeking her life's purpose.

    2021IndieRPG4.99 USDSteam ↗
  7. Aethermancer

    WHY THIS

    Shares creature collection and a whimsical mood with Rainbow Billy: The Curse of the Leviathan.

    Ranked #7 for Rainbow Billy: The Curse of the Leviathan fans by collaborative filtering across millions of Steam libraries. Shares Indie and Adventure with Rainbow Billy: The Curse of the Leviathan.

    Monster Taming meets Roguelite. Become the Aethermancer and fight alongside mythical creatures. Explore the ever-changing Fractured Ruins, plan your moves in challenging turn-based battles, and watch your Monsters grow stronger from previous lives and defy death!

    2025StrategyIndieAdventure21.99 USDDeck VerifiedSteam ↗
  8. Moonglow Bay

    WHY THIS

    Shares a cozy mood with Rainbow Billy: The Curse of the Leviathan.

    Ranked #8 for Rainbow Billy: The Curse of the Leviathan fans by collaborative filtering across millions of Steam libraries. Shares Indie and Adventure with Rainbow Billy: The Curse of the Leviathan.

    Embark on a journey as a rookie angler in Moonglow Bay, fulfilling your partner's final wish. Team up with friends, family, and neighbours to hone your fishing skills, nourish relationships, and restore a remote town's fractured community in this slice-of-life fishing RPG!

    2021IndieAdventureRPG24.99 USDDeck PlayableSteam ↗

Cheaper alternatives

Games in the same vein priced at least 40% below Rainbow Billy: The Curse of the Leviathan at current Steam store prices.

  1. Terraria

    WHY THIS

    Priced ~50% under Rainbow Billy: The Curse of the Leviathan on Steam right now. Shares Indie and Adventure with Rainbow Billy: The Curse of the Leviathan.

    Dig, fight, explore, build! Nothing is impossible in this action-packed adventure game. Four Pack also available!

    2011ActionIndieAdventure9.99 USDDeck VerifiedSteam ↗
  2. Garry's Mod

    WHY THIS

    Priced ~75% under Rainbow Billy: The Curse of the Leviathan on Steam right now. Shares Indie with Rainbow Billy: The Curse of the Leviathan.

    Garry's Mod is a physics sandbox. There aren't any predefined aims or goals. We give you the tools and leave you to play.

    2006IndieSimulationCasual4.99 USDDeck PlayableSteam ↗
  3. Lethal Company

    WHY THIS

    Priced ~50% under Rainbow Billy: The Curse of the Leviathan on Steam right now. Shares Indie and Adventure with Rainbow Billy: The Curse of the Leviathan.

    A co-op horror about scavenging at abandoned moons to sell scrap to the Company.

    2023ActionIndieAdventure9.99 USDDeck PlayableSteam ↗
  4. People Playground

    WHY THIS

    Priced ~50% under Rainbow Billy: The Curse of the Leviathan on Steam right now. Shares Indie with Rainbow Billy: The Curse of the Leviathan.

    Shoot, stab, burn, poison, tear, vaporise, or crush ragdolls in a large open space.

    2019ActionIndieSimulation9.99 USDDeck PlayableSteam ↗
  5. Portal 2

    WHY THIS

    Priced ~50% under Rainbow Billy: The Curse of the Leviathan on Steam right now. Shares Adventure with Rainbow Billy: The Curse of the Leviathan.

    The "Perpetual Testing Initiative" has been expanded to allow you to design co-op puzzles for you and your friends!

    2011ActionAdventure9.99 USDDeck VerifiedSteam ↗
  6. Fallout: New Vegas

    WHY THIS

    Priced ~50% under Rainbow Billy: The Curse of the Leviathan on Steam right now. Shares RPG with Rainbow Billy: The Curse of the Leviathan.

    Welcome to Vegas. New Vegas. Enjoy your stay!

    2010ActionRPG9.99 USDDeck PlayableSteam ↗
  7. Undertale

    WHY THIS

    Shares an emotional mood with Rainbow Billy: The Curse of the Leviathan.

    Priced ~50% under Rainbow Billy: The Curse of the Leviathan on Steam right now. Shares Indie and RPG with Rainbow Billy: The Curse of the Leviathan.

    UNDERTALE! The RPG game where you don't have to destroy anyone.

    2015IndieRPG9.99 USDDeck PlayableSteam ↗
  8. Vampire Survivors

    WHY THIS

    Priced ~75% under Rainbow Billy: The Curse of the Leviathan on Steam right now. Shares Indie and RPG with Rainbow Billy: The Curse of the Leviathan.

    Mow down thousands of night creatures and survive until dawn! Vampire Survivors is a gothic horror casual game with rogue-lite elements, where your choices can allow you to quickly snowball against the hundreds of monsters that get thrown at you. Be the bullet hell!

    2022ActionIndieRPG4.99 USDDeck VerifiedSteam ↗

Free alternatives

Free-to-play games that recommended players of this title also tend to enjoy.

  1. Doki Doki Literature Club!

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie with Rainbow Billy: The Curse of the Leviathan.

    The Literature Club is full of cute girls! Will you write the way into their heart? This game is not suitable for children or those who are easily disturbed.

    2017IndieFree To PlayCasualFreeDeck PlayableSteam ↗
  2. Helltaker

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and Adventure with Rainbow Billy: The Curse of the Leviathan.

    Helltaker is a short game about sharply dressed demon girls.

    2020IndieAdventureFree To PlayFreeDeck PlayableSteam ↗
  3. Bongo Cat

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie with Rainbow Billy: The Curse of the Leviathan.

    Bongo cat needs your help. Bongo cat needz more hatz!!! Every time you press a key, Bongo cat will punch your taskbar. Type, click, play, work to collect more points. Which hats will you find?

    2025IndieSimulationMassively MultiplayerFreeDeck PlayableSteam ↗
  4. The Murder of Sonic the Hedgehog

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie with Rainbow Billy: The Curse of the Leviathan.

    Sonic the Hedgehog...was murdered!? Get to the bottom of the mystery in this brand-new adventure!

    2023IndieSimulationFree To PlayFreeDeck PlayableSteam ↗
  5. Indigo Park: Chapter 1

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and Adventure with Rainbow Billy: The Curse of the Leviathan.

    Explore the abandoned childhood wonder of Indigo Park! Guided by Rambley the Raccoon, help restore power to the destroyed amusement park while you run from the reason it shut down.

    2024ActionIndieAdventureFreeDeck PlayableSteam ↗
  6. Our Life: Beginnings & Always

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie with Rainbow Billy: The Curse of the Leviathan.

    A twenty-dollar bill, four summers, fifteen years, and a one of a kind life. Create an experience that’s all your own in this near-fully customizable visual novel where you grow from childhood to adulthood with the lonely boy next door.

    2020IndieFree To PlayCasualFreeSteam ↗
  7. missed messages.

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie with Rainbow Billy: The Curse of the Leviathan.

    ‘goth gf’s iPhone’ airdrops you - accept or decline? A love/horror story about life, death, & memes.

    2019IndieSimulationFree To PlayFreeDeck PlayableSteam ↗
  8. NGU IDLE

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and Adventure with Rainbow Billy: The Curse of the Leviathan.

    NGU Idle is a Free To Play Idle game that's full of weird humor, tons of upgrades and hundreds of hours of content! Try out NGU Idle today and experience the joy of Numbers Going Up!

    2019IndieAdventureSimulationFreeDeck PlayableSteam ↗

More from ManaVoid Entertainment

Other recommendable Steam games by ManaVoid Entertainment, ranked by review count so the studio's hits land first.

  1. The Caribou Trail

    WHY THIS

    Shares an emotional mood with Rainbow Billy: The Curse of the Leviathan.

    Another title from ManaVoid Entertainment, the studio behind Rainbow Billy: The Curse of the Leviathan. Shares Indie and Adventure with Rainbow Billy: The Curse of the Leviathan.

    The WWI story where your goal isn’t to kill, but to survive. In the still trenches, three soldiers learn the harsh truth of war: reckless missions, digging trenches, collecting dog tags and ghostly whispers in the dark. Home before the leaves fall, they thought.

    2026ActionIndieAdventure11.69 USDDeck VerifiedSteam ↗
  2. Roots of Yggdrasil

    WHY THIS

    Shares a contemplative mood with Rainbow Billy: The Curse of the Leviathan.

    Another title from ManaVoid Entertainment, the studio behind Rainbow Billy: The Curse of the Leviathan. Shares Indie with Rainbow Billy: The Curse of the Leviathan.

    Build settlements, explore the Nine Realms, collect artifacts and upgrade your deck to reach the top of Yggdrasil in this post-Ragnarok roguelike city-builder! Can you survive the end of the world?

    2024StrategyIndie11.99 USDDeck VerifiedSteam ↗
  3. Epic Manager - Create Your Own Adventuring Agency!

    WHY THIS

    Another title from ManaVoid Entertainment, the studio behind Rainbow Billy: The Curse of the Leviathan. Shares Indie and Adventure with Rainbow Billy: The Curse of the Leviathan.

    Epic Manager is a unique crossover between Sports Management and classic JRPGs. Experience an addictive “one more turn” mix of tycoon strategy, roguelike elements, roster management, combat and character progression, all rooted in an epic yet light-hearted fantasy setting. Rated ‘E’ for EPIC!

    2016StrategyIndieAdventure17.99 USDSteam ↗

Frequently asked about Rainbow Billy: The Curse of the Leviathan

Is Rainbow Billy: The Curse of the Leviathan verified for Steam Deck?
Yes — Rainbow Billy: The Curse of the Leviathan is Steam Deck Verified, meaning Valve has confirmed it runs well on the Deck with full controller, text legibility, and default configuration support.
How much does Rainbow Billy: The Curse of the Leviathan cost?
Rainbow Billy: The Curse of the Leviathan is listed on Steam at 19.99 USD (current store price; Steam sales may reduce this temporarily).
What games are most similar to Rainbow Billy: The Curse of the Leviathan?
Based on Steam play patterns and shared genres/tags, the games most often recommended alongside Rainbow Billy: The Curse of the Leviathan are Rizz Dungeon: Skeleton Key to My Heart, The Gardener and the Wild Vines, People of Note.
Who developed Rainbow Billy: The Curse of the Leviathan?
Rainbow Billy: The Curse of the Leviathan was developed by ManaVoid Entertainment and published by Indie Asylum, Skybound Games.

imho.run ranks Steam game alternatives using a mix of collaborative filtering (ALS / iALS / EASE / LightGCN), content scoring over genres, categories, Steam tags, developers, and publishers, plus AI-extracted vibes mined from review text. The page above is generated in seed mode anchored on Rainbow Billy: The Curse of the Leviathan.

For library-aware picks tuned to your specific taste, sign in with Steam on the home page.

Games Like Rainbow Billy: The Curse of the Leviathan · imho.run