What language would be best to use to code a AR RTS tactical map mobile game?

Question

I'm trying to find the best way to code an idea I have following the question above. It's for a AR RTS tactical map mobile game where RSS (resources) will be needed for a lot of things. I honestly don't want to give too many spoilers. I'm sincere in this and could use whatever advice is out there.

Answer 1

For which platform do you wan’t to create your game?
PC
/ | \
Windows MacOS \
Linux

Phone
/ \
Android IOS