Well, you can download an emulator on your phone to run windows games, however depending on how great the emulator and your phone is maybe it will lag or be slow but really im not sure, maybe someone has tried and is already doing this since it is completely possible, Winlator is one emulator used for windows games on android, if you want more emulator options try asking chat GPT which one is best for this game. Likely someone out there tech savvy has been doing this with a good phone
Aside from cross compilation issues and driver shenaningans you also have the performance problem due to the art that might be an issue. The task is planned though just nobody is interested in it to suffer enough. Getting it on ios will be a pain though just like macos.
Hey, so I have some friends who want to try 0 A.D., but they don't have computers. Would it be possible to make a mobile version of 0 A.D., for phones and tablets? I know that there is a lot of work there, but it might be worth looking into. While most RTS gamers use their computers, it would also be interesting to play 0 A.D. on the go, like in a car or while your laptop is down.