Para openSUSE Tumbleweed corra o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/science:unstable/openSUSE_Tumbleweed/science:unstable.repo
zypper refresh
zypper install Coin
Para 15.6 corra o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/science:unstable/15.6/science:unstable.repo
zypper refresh
zypper install Coin
Para 15.5 corra o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/science:unstable/15.5/science:unstable.repo
zypper refresh
zypper install Coin