Review · Card · PC
31
Reviewed: 03 Jun 2026
PC
RomTech · 1999
Ludograph rating
Growth (BDS)
26
Risk (RIS)
3
Daily limit
120min
Age guidance
–
Developmental benefits
| B1 | Cognitive | 0.44 | |
| B2 | Social-emotional | 0.03 | |
| B3 | Motor | 0.15 | |
The game '31' offers cognitive benefits through strategic thinking, critical analysis, and memory recall required to play the card game effectively. Players must adapt their strategies based on the cards dealt and opponents' moves, providing a moderate adaptive challenge.
Design risks
| R1 | Compulsion-loop pressure | 0.00 | |
| R2 | Monetization | 0.00 | |
| R3 | Social risk | 0.11 | |
As a digital card game without microtransactions, loot boxes, or social chat, '31' presents very low risks related to compulsion-loop design, monetization pressure, and social interaction. Competitive elements are present but mitigated by the absence of direct player communication.
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.