Review · Fighting · PC · macOS
One Plus One Equals Eleven
Reviewed: 09 May 2026
PC · macOS
Miko Sramek · 2018
Ludograph rating
E
Avoid
25 /100
One Plus One Equals Eleven is a two-player fighting game that builds strategic thinking and reaction time, but its competitive nature may lead to toxicity.
Growth (BDS)
14
Risk (RIS)
1
Daily limit
120min
Age guidance
7+
Developmental benefits
| B1 | Cognitive | 0.14 | |
| B2 | Social-emotional | 0.00 | |
| B3 | Motor | 0.35 | |
One Plus One Equals Eleven is a minimalistic two-player fighting game that can help develop strategic thinking, hand-eye coordination, and reaction time. Its quick matches make it suitable for short play sessions.
Design risks
| R1 | Compulsion-loop pressure | 0.00 | |
| R2 | Monetization | 0.00 | |
| R3 | Social risk | 0.06 | |
The competitive nature of the game may lead to some competitive toxicity, and the violence, while abstract, could be a minor concern for very young players.
Content (not in risk score)
| R4.1 | Violence Level | 0.33 | |
| 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.