>>7955515Most Gundam games range from meh to alright. My favorite one thus far is Gundam Breaker 3. The gameplay isn't the deepest, sorta hack-and-slash-y, but the customization system thankfully is quite deep and will keep you going for hours. I was amazed at how addicted I got to collecting parts and putting together weird MS. Since you say "emulate" though, I'm guessing you're on PC, and GB3 only came out for PS3 and Vita, neither of which emulate well.
New Gundam Breaker is natively available on Steam, but sadly, they decided to take shit that wasn't broke in GB3 and overhaul it for no reason, creating a game that was worse in nearly every way. Though, maybe you'll be ok with it if you've never experienced how much better GB3 is. This might be your best option if you don't wanna get a console.