steam from openSUSE:Leap:15.3:NonFree project
Seleziona il sistema operativo
Aggiungi il repository e installa manualmente
Per standard eseguire quanto segue come root:
zypper addrepo https://download.opensuse.org/repositories/openSUSE:Leap:15.3:NonFree/standard/openSUSE:Leap:15.3:NonFree.repo zypper refresh zypper install steam