Catchyak

Catchyak is a top-down kayak time-trial on real rivers. Maps are built from OpenStreetMap river geometry and real aerial orthophoto: nine rivers in seven countries — Gauja (Latvia), Vltava and Sázava (Czechia), Dunajec (Pieniny gorge, Poland/Slovakia), Aare and Maggia (Switzerland), Hron (Slovakia), Soča (Slovenia) and Ardèche (France).

Read the current, dodge rocks and fallen trees, catch coins, chase the clock — every missed coin adds +15 s to your net time. Leaderboards per stage and per route.

Controls: swipe to paddle on touch screens — one swipe is one stroke, faster swipe means a stronger stroke, swipe up to back water. On desktop: A/D or arrow keys, hold to charge a deeper stroke. Sprint wisely — hard strokes burn stamina, easy paddling brings it back.

Early build: feedback is very welcome in the comments.