Installing Steam on Elementary OS While Elementary OS is based on Debian/Ubuntu, newer versions of Elementary don't automatically have the application required to open .deb files.

Opening a .deb file on Chrome OS Canary (source) On most Debian-based Linux distributions, users can double-click on .deb packages to install them.

Debian is built for those who crave a system that will "just work" instead of being on the bleeding edge. We take a close look at the latest Debian 9 "Stretch" release.