For openSUSE Tumbleweed run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:RN:asusctl/openSUSE_Tumbleweed/home:RN:asusctl.repo
zypper refresh
zypper install asusctl
For openSUSE Slowroll run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:RN:asusctl/openSUSE_Slowroll/home:RN:asusctl.repo
zypper refresh
zypper install asusctl
For 16.0 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:RN:asusctl/16.0/home:RN:asusctl.repo
zypper refresh
zypper install asusctl
For 15.6 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:RN:asusctl/15.6/home:RN:asusctl.repo
zypper refresh
zypper install asusctl