Biome map variants.
Mainland Twilight is a community add-on for 0 A.D.. Fresh Mainland layouts. Use the PlayBound launcher to drop the archive into the correct 0 A.D. 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.
Download page
This package isn't one-click yet. Open the official download page in your browser, then place files in the game's mods folder.
Install 0 A.D. first if you have not already — Mainland Twilight is an add-on and needs the base game.
The quickest route is the PlayBound Launcher: open 0 A.D., find Mainland Twilight in its mods list and press Install. The launcher downloads the official release and places it in the right folder for you.
Mainland Twilight is distributed through https://mod.io/g/0ad/m/mainland-twilight. Follow the instructions there — some add-ons install through the base game's own content browser rather than as a file.
Start 0 A.D. and enable Mainland Twilight from the in-game mods or add-ons menu. The download is roughly 90 MB.
Yes. Mainland Twilight is released under Open Source / Community and costs nothing. Neither it nor 0 A.D. has any paid content.
0 A.D., which is itself free. Mainland Twilight is an add-on and will not run standalone.
The PlayBound Launcher installs it in one click from 0 A.D.'s mods list. You can also install it by hand — full steps are on this page.
Roughly 90 MB, on top of the base 0 A.D. installation.