Review · Casual · PC
qop 3
Reviewed: 17 May 2026
PC
Quiet River · 2018
Ludograph rating
Growth (BDS)
30
Risk (RIS)
0
Daily limit
120min
Age guidance
–
Developmental benefits
| B1 | Cognitive | 0.54 | |
| B2 | Social-emotional | 0.00 | |
| B3 | Motor | 0.15 | |
qop is a minimalistic puzzle game that primarily benefits cognitive skills such as problem-solving, spatial awareness, strategic thinking, critical thinking, memory, and learning transfer. The game's increasing difficulty and unique cube mechanics provide an adaptive challenge.
Design risks
| R1 | Compulsion-loop pressure | 0.00 | |
| R2 | Monetization | 0.00 | |
| R3 | Social risk | 0.00 | |
qop presents minimal risks. It lacks social interaction, monetization, and content risks. The primary risk is the potential for frustration due to the increasing difficulty of puzzles.
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.