I know, but it's always more convenient to have an easy to install/uninstall packagage with according .desktop file.
I've just tried with
minecraft from AUR instead, which seems to be kind of working. Once started from the menu it opens a window, looks for an update, downloads something, extracts the
launcher.jar and launches it, but it takes ages (maybe 15 to 20 minutes or even longer) before something happens. It's now showing the Minecraft register/login box (but I don't have an account and don't want to buy, I was just curious if it will work and is usable).
I'm now going to try