Here is the full list of all 8 Metro Simulator 2 achievements.
Complete Nomernoy tutorial
Complete Oka tutorial
Complete a route from Novoyasenevskaya to Medvedkovo or vice versa without any penalties on Nomernoy
Complete a route from Novoyasenevskaya to Medvedkovo or vice versa without any penalties on Oka
Transfer 1,000 passengers
Transfer 10,000 passengers
Complete all scenarios
Change cabins without using fast switch