Steam is a content delivery system and ecosystem for gaming, developed by Valve Software. It offers hundreds of games, from popular ones such as DOTA 2 to many other less popular and even obscure community games. Steam runs on Microsoft Windows, MacOS, and also Linux.
Current Supported Options
There are two supported options for Steam on Funtoo:
2. We also have an official Docker image for Steam. See Steam/Docker for details on this image. This method currently only supports NVIDIA hardware. Our Steam image is based on Ubuntu 18. Our Docker image is not actively maintained, so we recommend you use option 1, above.
While these two options use different technologies, under the hood they are actually quite similar. They both use a containerized version of Ubuntu which contains the SteamOS runtime.
History on Funtoo
Through Funtoo Linux 1.2, it was possible to play Steam directly under Funtoo. However, with the move to Funtoo Linux 1.3, 32-bit support was dropped from Funtoo, and Steam is currently dependent on a host of 32-bit libraries.
Thus, Steam no longer worked under Funtoo directly. However, it is still possible to run Steam under Funtoo via use of containerization technology. Initially, much of the setup was left to users to figure out. But now, there are two officially supported options for Steam that are easy to set up and at least one should work for you.