Compile custom.
OA engine is a community add-on for OpenArena. OpenArena engine source. Use the PlayBound launcher to drop the archive into the correct OpenArena content folder, then enable the mod from the game's mod or content menu. Mods are versioned separately from the base game — match the recommended engine or client release before joining multiplayer, and keep a clean backup of your settings if you experiment with several packs at once. PlayBound only lists projects that publish redistributable archives or clear external download pages. Always read the upstream README for credits, required assets, and known incompatibilities.
Install with the PlayBound Launcher
The launcher installs this into mods/ for OpenArena. If the base game is missing, it will install that first.
Install OpenArena first if you have not already — OA engine is an add-on and needs the base game.
The quickest route is the PlayBound Launcher: open OpenArena, find OA engine in its mods list and press Install. The launcher downloads the official release and places it in the right folder for you.
To install it by hand, download the latest release archive from github.com/OpenArena/engine/releases.
Extract the archive into the "mods" folder inside your OpenArena installation directory.
Start OpenArena and enable OA engine from the in-game mods or add-ons menu. The download is roughly 40 MB.
Yes. OA engine is released under Community / External hub and costs nothing. Neither it nor OpenArena has any paid content.
OpenArena, which is itself free. OA engine is an add-on and will not run standalone.
The PlayBound Launcher installs it in one click from OpenArena's mods list. You can also install it by hand — full steps are on this page.
Roughly 40 MB, on top of the base OpenArena installation.
Yes. The source is published at github.com/OpenArena/engine under Community / External hub.