Small studio. Big weight.
Tamemon is an independent studio in the UK making calm, carefully made games and apps. Try our first two right here.
- Made in the UK
- No forced ads
- Your data stays on your device
Come and find me when I'm out. I'll keep the forge warm and we can train together.
Coming soon to Google PlayRiver Otter
A calm swimming game. You are a young otter in a living river: hunt, explore, grow, and find what the water hides.
No forced ads. Made to be played slowly.
Coming soon to Google Play
Tetsu Training Pal
A tiny fire spirit who grows stronger every time you train. The training behind him is the real thing.
Coming soon to Google PlayEvery plan is written by Storm, a Level 3 personal trainer and Level 2 fitness instructor (YMCA Awards), with over ten years of training people and twelve years of lifting.
Built on the research
Hard sets per muscle each week, every muscle trained twice, reps left in the tank and progressive overload. Your plan shows its working.
Safe by design
A quick safety check before you start, and automatic swaps for sore knees, backs and shoulders.
Knows when to ease off
Planned deload weeks, and a lighter load after missed reps. It tells you why.
Explains every move
Form cues for each exercise, in plain words, for the gym, dumbbells or no kit at all.





Tetsu is for general fitness. Check with a doctor before starting if you have a health condition or injury.