LumiKin

40 Thieves Solitaire

MmpApps|2015StrategyCard

LumiScore

55

out of 100

Appropriate for most ages with parental supervision

Up to120min/day

Growth

39/100

Developing

Growth Value

Risk

8/100

LOW

Engagement Patterns

Heads up

💸 Monthly cost: Free

Parent Pro-Tip

Encourage your child to articulate their strategies and explain their moves while playing. This can further enhance their critical thinking and communication skills.

Benefits

Top Skills Developed

Problem Solving5/5
Strategic Thinking5/5
Critical Thinking5/5
Memory & Attention5/5
Spatial Awareness3/5

Development Areas

CognitiveProblem solving, spatial awareness, strategic thinking, creativity, memory, and learning transfer. Weighted 50% of the Benefit Score.
64
Social & EmotionalTeamwork, communication, empathy, emotional regulation, and ethical reasoning. Weighted 30% of the Benefit Score.
3
Motor SkillsHand-eye coordination, fine motor control, reaction time, and physical activity. Weighted 20% of the Benefit Score.
30
Overall Benefit Score (BDS)39/100

What your child develops

40 Thieves Solitaire offers a classic and engaging puzzle experience that sharpens problem-solving, strategic thinking, and memory skills. Its simple interface and clear objectives make it accessible for quick mental exercise.

Risks

Dopamine ManipulationVariable rewards, streaks, FOMO events, near-miss mechanics, and other design patterns that exploit reward psychology.LOW

Variable rewards, streaks, FOMO events, and other engagement mechanics

Monetization PressureIn-app purchases, pay-to-win mechanics, virtual currency obfuscation, spending prompts, and ad pressure.LOW

In-app purchases, pay-to-win elements, and spending prompts

Social RiskSocial obligations, competitive toxicity, stranger interaction, social comparison, and privacy concerns.LOW

Social obligation, competitive toxicity, stranger interaction

Content (not in risk score)Violence, language, sexual content, and other age-related content factors. Shown separately — does not affect the time recommendation.LOW

Violence, language, and other content factors — context depends on age

Content risk is displayed separately and does not affect the time recommendation.

What to watch for

As a single-player card game with no monetization or social features, 40 Thieves Solitaire presents minimal risks. The primary 'risk' is the potential for frustration from difficult card shuffles, but this is inherent to the genre and not a manipulative design.

Detected Tactics

✓ No manipulative tactics detected

Base: UnknownReviewed May 2026

Regulatory Compliance

Tap a badge for details. Grey = not yet assessed.