0AD clearly lacks campaigns, and Hyrule is one of the rare mod to bring one. That's what i know. But beside this I'm not a huge single player, as I'm mostly caught in multiplayer already, so I don't feel best positioned to say more. If ever since it was my case at some point : building the game on linux is super easy, but reading through the build instructions is confusing.  Someone should make something better with tabs or something for each os, instead of the current giant monolith... I made a summary here for building a27 on debian.

The problem I am having is that my copy of 0ad is a FlatPak, and because of this the Scenario Editor doesn’t work, so I can’t make my own scenario maps, only hand-edit existing ones, which is a pain in the @$$.

Sorry about that. The campaign isn’t finished, still a long way to go. I actually have given up on it for the time being, but if you think it is worth pursuing, I’ll try to get it done for the next release.

@Percival12  Congratulations on your work! It's truly something necessary to keep this legacy alive. I hope you can maintain this excellent progress                      

On the campaign, I'm not sure where to find the enemy after destroying the first base (got all the map explored), so I'm unable to finish first mission. Beside this very good job on the mod 

We discovered with my bro John that it fixed installing the 0ad version for intel

The newest release is out! You can get it on Github: https://github.com/Perzival123/Hyrule-Conquest-Revival, and on ModDB: https://www.moddb.com/mods/hyrule-conquest-revival/downloads/hyrule-conquest-revival-0-3-0. I'll post it here later.