Rainbow Billy: The Curse of the Leviathan is a Adventure, RPG game from ManaVoid Entertainment with a 94% positive Steam review signal. Indie Lantern indexes it for players browsing by single-player.

Game snapshot
- Developer
- ManaVoid Entertainment
- Release year
- 2021
- Playtime
- Varies by player
- Price
- $19.99
- Review signal
- 94% positive
Screenshots






System requirements
PC
- Minimum
- OS *: Win 8.1 64-bit or higher
Processor: AMD FX-4350 or Intel equivalent.
Memory: 4 GB RAM
Graphics: Nvidia GeForce GTX 650, 1 GB or AMD Radeon HD 7750, 1 GB
DirectX: Version 10
Storage: 4 GB available space
Sound Card: DirectX 10 compatible - Recommended
- OS: Windows 10
Processor: AMD Ryzen 3 1300X or Intel Core i5-7400
Memory: 8 GB RAM
Graphics: AMD Radeon RX 5500 XT, 4 GB or Nvidia GeForce GTX 970, 4 GB
DirectX: Version 10
Storage: 8 GB available space
Sound Card: DirectX 10 compatible
From Steam reviews
Review notes
Rainbow Billy: The Curse of the Leviathan is worth a closer look if you want exploration, nautical, emotional story, and controller friendly.
Best for players who want nautical, emotional story, strong atmosphere, and exploration.
Check more carefully if you dislike technical roughness.
exploration
Play styleThe draw is moving through spaces, discovering details, and learning the world.
nautical
SettingWater, boats, fishing, or sea travel are important to the feel.
emotional-story
ToneThe story is framed as affecting rather than just plot-heavy.
controller-friendly
FitController, gamepad, or Steam Deck play comes up as a plus.
boss-rush
Play styleA major part of the game is learning and beating standout fights.
strong-atmosphere
ToneThe mood, place, and presentation carry a lot of the experience.
buggy
FrictionTechnical roughness or instability comes up often enough to check.
psychological-themes
SettingPsychology, perception, or mental strain is an important theme without implying horror.
Steam review snapshots
Fishing for items to gift to friends.Mini games to "catching" friends and helping bosses.The story is emotional and may not be for everyone.* Explore three medium-large areas, meeting people and finding collectibles.Why it fits
Check it if you want adventure, rpg filtered by single-player.
Who might skip it
Research further on Steam if you need verified accessibility details, exact playtime, or current system requirements.