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Cthulhu Realms

Review · Strategy · Android · iOS · PC

Cthulhu Realms

Reviewed: 03 Jun 2026

Android · iOS · PC · macOS

White Wizard Games · 2016

Ludograph rating

B

Good

60 /100

Automated review
06010030Benefit →Low risk →B 45 · R 11
The Ludograph reading, plotted from the published benefit and risk sub-scores.

Growth (BDS)

45

Risk (RIS)

11

Daily limit

120min

Age guidance

10+

Developmental benefits

B1Cognitive
0.68
B2Social-emotional
0.27
B3Motor
0.15

Cthulhu Realms is a strategic deckbuilding game that fosters problem-solving, critical thinking, and strategic planning through its core gameplay mechanics. Players must adapt to changing card draws and opponent strategies, promoting adaptive challenge and learning transfer. It also offers opportunities for positive social interaction through local and online multiplayer modes with friends.

Design risks

R1Compulsion-loop pressure
0.10
R2Monetization
0.08
R3Social risk
0.17

While generally low-risk, Cthulhu Realms' competitive online play could expose players to moderate competitive toxicity and mild social comparison. The game's 'crazily addictive' nature, while primarily due to engaging gameplay, does incorporate mild variable reward mechanics inherent to card games, which could contribute to prolonged engagement. The Cthulhu theme, despite comical art, introduces a moderate level of fear/horror content.

Content (not in risk score)

R4.1Violence Level
0.33
R4.2Sexual Content
0.00
R4.3Language
0.33
R4.4Substance References
0.00
R4.5Fear / Horror
0.67

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

Regulatory design checks · DSA — Not yet assessed·GDPR-K — Not yet assessed·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.
  • GDPR-K:What Ludograph checks: whether age assurance and consent flows are designed for under-16s, in the spirit of GDPR Article 8.
  • 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.

Avg playtime~1 hReviewedJun 2026Report a data error →How scores are calculated →

Parents ask…

Is Cthulhu Realms safe for kids?

Ludograph gives Cthulhu Realms a rating of 60/100, recommended for ages 10 and up. It offers solid benefits but needs parental guidance on the risks.

What age is Cthulhu Realms appropriate for?

Ludograph's rubric recommends a minimum age of 10+ for Cthulhu Realms, based on benefits, risks, and content review.

How long should kids play Cthulhu Realms?

Our session recommendation for Cthulhu Realms is up to 120 minutes per day. It is derived from the game's own structure (natural stopping points, compulsion-loop design, monetization pressure, and social dynamics), not from a universal screen-time dose.

Session recommendations are design-based heuristics. Evidence linking specific daily durations to child outcomes is limited, and context matters as much as time; treat this as a starting point for household rules, not a clinical threshold.

What are the main risks of Cthulhu Realms?

While generally low-risk, Cthulhu Realms' competitive online play could expose players to moderate competitive toxicity and mild social comparison. The game's 'crazily addictive' nature, while primarily due to engaging gameplay, does incorporate mild variable reward mechanics inherent to card games, which could contribute to prolonged engagement. The Cthulhu theme, despite comical art, introduces