Installing Adobe AIR on OpenSuSE using official repository
All modern Linux distributions have a concept of keeping themselves up to date with an online system of 'repositories' of applications that anyone can run.
Adobe have handily set one up for their AIR runtime, and provide instructions for RPM based systems that use 'yum' (like Fedora and RedHat) and DEB based systems that use 'apt' (like Ubuntu and Debian).
Although OpenSuSE can use yum, by default it has it's own 'zypper' system, but it can use the RPM repository anyway.