For openSUSE Tumbleweed run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:gallochri:Strippato/openSUSE_Tumbleweed/home:gallochri:Strippato.repo
zypper refresh
zypper install gnome-arcade
For openSUSE Slowroll run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:gallochri:Strippato/openSUSE_Slowroll/home:gallochri:Strippato.repo
zypper refresh
zypper install gnome-arcade
For 15.6 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:gallochri:Strippato/15.6/home:gallochri:Strippato.repo
zypper refresh
zypper install gnome-arcade