Payphone Tag sounds so cool! The mechanic where if you have 3 of them close together it forms a triangle is 💯% Ingress inspired, but overall it sounds much more simplified in a good way. In Ingress, you could level up which allowed you to attack/protect sites more strongly, which made it hard to play casually. Although I kinda agree with Martin that Payphone Tag would also be hard to casually play along with someone else in the same household who is very competitive...
