Singcrow is short for synchronize
This is a patcher. If you are running linux with GLIBC 2.27 or newer (ubuntu 18, debian 10, RHEL 8)
with a windowing environment (X11 or Wayland based) then you can try it out.
Then just run: singcrow-client -c singcrow-client.config to patch and download the sample game.
The sample game may change over time, and it will update before running it.