TRAIN • SWEAT • LIVE
Thank You,
Judo Community!
All 200 Founder copies of Grumpy Sensei™ have sold. Thank you to everyone who supported our first production run!
200 / 200 Founder Copies Sold
Orders placed now will be fulfilled in the order they are received when Grumpy Sensei™ returns on August 17, 2026.
We Love Play Judo!
I had the chance to play Grumpy Sensei for the first time at "The Greatest Judo Camp on Earth 2026", and it was one of the highlights of the weekend. Within minutes, everyone around the table was laughing, thinking, and testing their memory...
I had the chance to play Grumpy Sensei for the first time at "The Greatest Judo Camp on Earth 2026", and it was one of the highlights of the weekend. Within minutes, everyone around the table was laughing, thinking, and testing their memory...
Playing Grumpy Sensei brought back memories of sitting around the table with friends, playing card games for hours and laughing the whole time. The difference is that this time we were also reinforcing our judo techniques without even realizing it. It's the...
Playing Grumpy Sensei brought back memories of sitting around the table with friends, playing card games for hours and laughing the whole time. The difference is that this time we were also reinforcing our judo techniques without even realizing it. It's the...
💗 The first thing I noticed was the quality of Grumpy Sensei. The cards feel premium, the artwork is beautiful, and every technique is illustrated with incredible attention to detail. Even before we started playing, everyone at the table was impressed. Once...
💗 The first thing I noticed was the quality of Grumpy Sensei. The cards feel premium, the artwork is beautiful, and every technique is illustrated with incredible attention to detail. Even before we started playing, everyone at the table was impressed. Once...
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About Play Judo™
Our mission is simple: help people learn the techniques, terminology, and traditions of judo through games, educational tools, and creative learning experiences.
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At Play Judo, our mission is to support and grow the worldwide judo community through educational products, apparel, and resources that inspire learning both on and off the mat.
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