LumiKin
Rainbow Billy: The Curse of the Leviathan

Review · Adventure · PC · PlayStation 4 · Xbox One

Rainbow Billy: The Curse of the Leviathan

By the LumiKin editors

Reviewed: 18 May 2026

PC · PlayStation 4 · Xbox One · Nintendo Switch

ManaVoid Entertainment · 2021

LumiScore

66/100

Good

Growth (BDS)

49

Risk (RIS)

0

Daily limit

120min

Age guidance

E

Developmental benefits

B1Cognitive
0.64
B2Social-emotional
0.33
B3Motor
0.35

Rainbow Billy: The Curse of the Leviathan offers significant cognitive benefits through its intricate color puzzles, strategic team-building, and exploration. Players will engage their problem-solving, critical thinking, and strategic planning skills. The game also fosters social-emotional development by encouraging empathy through befriending creatures and promoting positive social themes of friendship. Motor skills, particularly hand-eye coordination and reaction time, are moderately engaged through its platforming and combat elements.

Design risks

R1Dopamine pressure
0.00
R2Monetization
0.00
R3Social risk
0.00

This game presents very low risks across all categories. There are no dopamine manipulation mechanics, monetization pressures, or social interaction risks such as stranger chat or competitive toxicity. Content risks are minimal, with only mild cartoon violence appropriate for its E-rating.

Heads up

  • Monthly spendTypical real-money spend by engaged players: $0–0/mo.
Avg playtime~2 hReviewedMay 2026How scores are calculated →

Parents ask…

Is Rainbow Billy: The Curse of the Leviathan safe for kids?

LumiKin gives Rainbow Billy: The Curse of the Leviathan a LumiScore of 66/100. It offers solid benefits but needs parental guidance on the risks.

How long should kids play Rainbow Billy: The Curse of the Leviathan?

LumiKin's recommended play time for Rainbow Billy: The Curse of the Leviathan is Up to 2 hours/day, calibrated to the game's dopamine, monetization, and social-pressure profile.

What are the main risks of Rainbow Billy: The Curse of the Leviathan?

This game presents very low risks across all categories. There are no dopamine manipulation mechanics, monetization pressures, or social interaction risks such as stranger chat or competitive toxicity. Content risks are minimal, with only mild cartoon violence appropriate for its E-rating.