Connect pcs in a lan setup for gamin

Guys im new to this,so please someone explain how can i connect 3 computers in different locations in a lan setup to play couch co op games using twingate,i have installed 3 connectors on the 3 pc and 3 clients on them,added them 3 as resources in the network of twingate,then i tried to access their pc using remote desktop using local IP it doesnt to go about this ?