What is the last video game that you were completely hooked on?

You'll laugh.

Bus simulator: Ultimate
Android game that will toast your phone, but it's pretty nice. It has a multiplayer too and a 2nd hand market where people bid on used buses. Naturally this means it's best to attempt to put a bus for auction in specific hours, and bid in others.

Some of the longer routes take well over an hour in real world.
One effect on me, which is also true for trains and busses in real life, is that it makes me sleepy pretty quickly.
Low frequency sound of the engine, trees moving past, road lanes quickly zipping past, you're just staring in front while doing minor adjustments and falling asleep.
I should not drive in real life.