Review · Strategy · iOS
Jewel of Kings
Reviewed: 15 May 2026
iOS
Galvanized Logic · 2017
Ludograph rating
Growth (BDS)
27
Risk (RIS)
0
Daily limit
120min
Age guidance
10+
Developmental benefits
| B1 | Cognitive | 0.48 | |
| B2 | Social-emotional | 0.00 | |
| B3 | Motor | 0.15 | |
Jewel of Kings is a strategic card game that encourages problem-solving, critical thinking, and adaptive learning through its unique suit-abilities and varied game modes. Its relaxed pace allows for thoughtful play, and the unlimited undo/redo feature promotes experimentation without penalty.
Design risks
| R1 | Compulsion-loop pressure | 0.00 | |
| R2 | Monetization | 0.00 | |
| R3 | Social risk | 0.00 | |
Jewel of Kings presents minimal risks, as it is a single-player experience with no monetization, social features, or concerning content. The primary risk is the potential for excessive screen time, though the short, self-contained nature of each game mitigates this to some extent.
Content (not in risk score)
| R4.1 | Violence Level | 0.00 | |
| 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.