Review · Adventure · PC · PlayStation 4 · Xbox One
Rainbow Billy: The Curse of the Leviathan
Reviewed: 18 May 2026
PC · PlayStation 4 · Xbox One · Nintendo Switch
ManaVoid Entertainment · 2021
Ludograph rating
Growth (BDS)
49
Risk (RIS)
0
Daily limit
120min
Age guidance
7+
Developmental benefits
| B1 | Cognitive | 0.64 | |
| B2 | Social-emotional | 0.33 | |
| B3 | Motor | 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
| R1 | Compulsion-loop pressure | 0.00 | |
| R2 | Monetization | 0.00 | |
| R3 | Social risk | 0.00 | |
This game presents very low risks across all categories. There are no compulsion-loop design 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.
Content (not in risk score)
| R4.1 | Violence Level | 0.33 | |
| R4.2 | Sexual Content | 0.00 | |
| R4.3 | Language | 0.00 | |
| R4.4 | Substance References | 0.00 | |
| R4.5 | Fear / Horror | 0.00 | |
Content risk is displayed separately and does not affect the time recommendation.
Regulatory design checks · DSA — Assessed: meets criteria·GDPR-K — Assessed: meets criteria·ODDS — Assessed: meets criteria
- DSA:What Ludograph checks: whether the game's design gives minors the transparency the EU Digital Services Act expects: plain terms, honest defaults, and clear reporting routes.: Estimated from review data. No dark pattern or child-targeting concerns found.
- GDPR-K:What Ludograph checks: whether age assurance and consent flows are designed for under-16s, in the spirit of GDPR Article 8.: Estimated from review data. No privacy or child-targeting concerns found.
- ODDS:What Ludograph checks: whether paid random-reward drop rates are disclosed, as required in China, Japan and South Korea.: Estimated from review data. No paid random-reward mechanics found, so drop-rate disclosure requirements do not apply.
These reflect Ludograph's assessment of the game's design practices against each framework's criteria, not a legal compliance determination.