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HardCube

Review · Adventure · Linux · Xbox One · Nintendo Switch

HardCube

Reviewed: 02 Jun 2026

Linux · Xbox One · Nintendo Switch · PlayStation 4 · PC · macOS

LEVER Software · 2016

Ludograph rating

D

Caution

43 /100

Automated review
06010030Benefit →Low risk →B 28 · R 3
The Ludograph reading, plotted from the published benefit and risk sub-scores.

Growth (BDS)

28

Risk (RIS)

3

Daily limit

120min

Age guidance

6+

Developmental benefits

B1Cognitive
0.38
B2Social-emotional
0.00
B3Motor
0.45

HardCube is a challenging arcade platformer that significantly engages cognitive and motor skills. Players will develop problem-solving abilities, spatial awareness, strategic thinking, and memory as they navigate complex obstacles. The game also hones hand-eye coordination, fine motor skills, and reaction time, offering a choice of difficulty levels to ensure an adaptive and engaging challenge.

Design risks

R1Compulsion-loop pressure
0.00
R2Monetization
0.00
R3Social risk
0.11

HardCube presents exceptionally low risks across all categories. There are no manipulative compulsion-loop mechanics, and the game is free from microtransactions, loot boxes, battle passes, and subscriptions, eliminating monetization pressures. With no stranger chat and an ESRB 'E' rating, social and content risks are minimal. The only minor risks stem from online rankings, which could introduce mild competitive toxicity or social comparison, but these are not central to the gameplay experience.

Content (not in risk score)

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

Avg playtime~4 hReviewedJun 2026Report a data error →How scores are calculated →

Parents ask…

Is HardCube safe for kids?

Ludograph gives HardCube a rating of 43/100. There are notable risks worth knowing before letting kids play.

How long should kids play HardCube?

Our session recommendation for HardCube 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 HardCube?

HardCube presents exceptionally low risks across all categories. There are no manipulative compulsion-loop mechanics, and the game is free from microtransactions, loot boxes, battle passes, and subscriptions, eliminating monetization pressures. With no stranger chat and an ESRB 'E' rating, social and content risks are minimal. The only minor risks stem from online rankings, which could introduce m