I can definitely add a rank system but i just dont sure how to do the rest like queue system, casual matches because if i want it to be competitive and fair i have to host a bunch of servers if not then cheaters can easily change their rank, by now the game is free so there is no fund for me to host a big amount of servers worldwide.
I can confirm this is a really good suggestion but i just cant really implement a proper rank system without spending tons of money on server hosting especially when the game is free