beat
 people with math

Play on desktop now for free

Welcome toCrown The Game.

We take a fundamentally different (and deeply human) approach to the entire notion of math competitions.

The world's first real-time math game, where your score isn't just about being first.

DislikeYour score ≠ the number of problems you solve
DislikeYour score ≠ the fastest answer given
LikeYour score = amount of Brain others give you
What is a Brain?
If someone found your chat messages helpful to problem-solving, they can give you a Brain. A real winner helps others!

So, how does this game work?

The power of this innovation comes from its simplicity

The beauty and power of math comes from carefully designing the right system of simple rules, which produce great meaning. It's like poetry.

Experience education at a massive scale.

A scoring system with real-time, peer-to-peer teaching worldwide. Students learn how to solve problems through the social ecosystem of an online game.

Global chat connections

Build a positive, supportive community

Unlike how competitions prioritize scores, our's thrives on kindness. In our matches, empathy and helpfulness are valued over individual achievement.

Social, without a need to monetize

The Game is free from investor control and doesn't need to make a financial return to cover our costs. It's our way of contributing to a more thoughtful world. We can do this because our main work, LIVE by Po-Shen Loh (operated by our parent social enterprise Expii, Inc.), operates a financially sustainable ecosystem with costs and revenues that far exceed The Game. Additionally, Purposeful Ventures has donated to support The Game.

If you'd like to contribute, your donation will be used responsibly. Non-tax-deductible contributions to our parent social enterprise can be made via our tip jar here. For larger tax-deductible donations, email donate@poshenloh.com for instructions to contribute to our 501(c)(3) non-profit fiscal sponsor.

This financial freedom lets us rethink online social ecosystems. We designed The Game for children under 13, avoiding ads, addictive features, and unhealthy behaviors. Instead, we use thoughtful design principles to inspire and encourage positive social behavior.

Meet the Team

Our team is united by the passion of working on a social mission. We bring different backgrounds and interests, spanning from math itself, to video games, art, and computer science. By combining these perspectives, we seek to create a new way of learning math, with a powerful dose of humanity.

Po-Shen Loh portrait
Po-Shen Loh
Founder
Gabriel Hall portrait
Gabriel Hall
Lead Game Dev
Eric Xu portrait
Eric Xu
Game Dev
Xavier Lien portrait
Xavier Lien
Game Dev
Heysu Oh portrait
Heysu Oh
Design
Christy Zo portrait
Christy Zo
Design
Shannon Lin portrait
Shannon Lin
Design
Copyright 2026 Expii, Inc. All rights reserved.