Download size

How many GB is Traffic Architect?

0.49 GB

That is less than the typical Simulator game, which needs about 4 GB.

Leave at least 6 GB free: games need headroom to unpack updates.

The figure is the storage Steam lists as required for this game, not a measured download.

The city is the easy part. Making it move isn't. Lay out roads, shape junctions and time the lights, then watch thousands of simulated cars find every flaw you missed. Take cars off the road with buses, trains and metro — or build the whole city yourself in Creative mode.