Thanks for trying my game out! Currently working on v0.4 with a lot of improvements. Custom, way way faster physics engine. Easier, more user friendly way to write DNA code.
I did not write a list of possible commands for v0.3 but here is a readme I created for v0.2, most of the stuff is the same and you can figure out the differences by looking at examples. https://pastebin.com/62cy2sJQ