csmash binary package in Ubuntu Focal riscv64

 CannonSmash is a funny 3D table tennis game. It takes a while to get
 your hand at ease with the mouse+keyboard manipulations. But once
 you're used to the technique, you can feel like playing a real game.
 It is playable against the computer or through a network.
 .
 Since csmash relies on OpenGL-compatible rendering, it is best
 experienced with a 3D accelerator card, although software rendering
 in wireframe mode should be sustainable.

Source package