Alternatives to ChimeraOS
A Linux operating system that turns a PC into a controller-driven, console-style gaming machine. The listings below can replace it for an important use case. Each note says what changes if you switch.
The original
ChimeraOS
A Linux operating system that turns a PC into a controller-driven, console-style gaming machine.
Replacements
Listings that take over the same core job as ChimeraOS.
SteamOS
Valve's Linux-based gaming operating system for the Steam Deck and other supported devices.
SteamOS is Valve's official Steam-centred system, but it is closed source and only supported on the Steam Deck and some AMD-powered PCs.
Nobara
A Fedora-based Linux desktop tuned for gaming, streaming and content creation out of the box.
Nobara is a Fedora-based full desktop with WINE, OBS Studio and tuned drivers set up, suiting Steam Deck-style handhelds but not built as a console-only interface.
Garuda Linux
An Arch-based Linux distribution with a gaming edition, performance tweaks and the Chaotic-AUR repository.
Garuda Linux offers a dedicated gaming edition on an Arch base with the Chaotic-AUR repository, but it is a regular desktop with rolling updates needing attention.
Drauger OS
An Ubuntu-based Linux distribution tuned for desktop gaming performance.
Drauger OS is an Ubuntu-based KDE Plasma desktop with a gaming-tuned kernel and preinstalled launchers, rather than a controller-driven console interface, from a small team.
Bazzite
A Fedora-based Linux distribution set up for gaming on desktops, handhelds, tablets and living-room PCs.
Bazzite is Fedora-based with a separate edition for handhelds and HTPCs, HDR and VRR support and rollback updates, and it also works as a desktop system.
Also worth comparing
These listings name ChimeraOS as their own alternative, so the relationship runs both ways.
Ubuntu GamePack
An Ubuntu-based Linux distribution preloaded with Steam, Wine and other gaming tools.
ChimeraOS replaces the desktop with an open-source controller-driven console interface built around Steam Big Picture, so it is not meant for general desktop use.
Similar software
Related functionality, not a direct replacement.
Batocera.linux
A free, open-source retro gaming Linux distribution that boots from a USB stick or SD card.
Lakka
A lightweight Linux distribution built on RetroArch that turns small computers into retro gaming consoles.
Recalbox
A retro gaming operating system that turns a Raspberry Pi or other hardware into a multi-system console.
Steam
Valve's PC gaming platform and client for buying, installing and playing games, with community features.
Pop!_OS
An Ubuntu-based Linux desktop operating system from System76, focused on productivity and customization.
Gamescope
Valve's micro-compositor for Linux games, used in the SteamOS session and as a nested compositor.