This happened yesterday, playing 2nd playthrough of Days Gone(Survival mode 2).
Deacon started as an outsider, a nomad, not trusted by the camp people in three different camps. But slowly by bringing them supplies, freaker ears and taking out various outlaws he wins them over.
For the final battle, he thinks it just him and Boozer, then bikers from all the camps turn up.
I think where games like Death Stranding have a concept of connection, Days Gone does it on a much more real level. It felt like an emotional moment when they joined forces.