Mini Motorways is a strategy simulation game about designing the road map for a growing city. Build a traffic network, one road at a time, to create a bustling metropolis. Redesign your roads and place your motorways to get everyone where they need to go. How long can you keep the city moving?
Or 40% off if you buy through the Miniverse Collection if you own Mini Metro.
Never heard of this game but got hooked watching 30 minutes of a dev playthrough. It looks very well made and fun.
You should also check out Mini Metro.