If you have gamepass its on there. I've enjoyed it for what it is but as much as I loved Age of Mythology 22 years ago, times have moved on and things like Gates of Hell have raised the bar for what I expect from these sorts of "RTS". Its a nice trip down memory lane but not one I'd spend money on (beyond it being on gamepass)
I will buy it for my steam collection. Trouble is all the keys that are a decent price are for Microsoft's store. **** that. Steam or nothing for me.