Here is the full list of all 22 Trains VR achievements.
Get all medals possible.
Get 120 medals for completing levels.
Get 80 medals for completing levels.
Get 40 medals for completing levels.
Complete 'Special 5' without using turntables.
Maximum points on levels 'Special 9' , 'Special 11' , 28.
Complete all levels.
Complete level 11 with trains finishing back on starting stations.
Complete 'Special 10' using a maximum of 12 rail pieces.
Complete level 22 using only maximum speed once track is placed.
Complete level 9 with trains on each others stations.
Place 2000 pieces of track.
On level 8 make train travel 8 times over the same piece of track.
Complete level 28 without using switches.
Collide three trains at the same time.
Collide trains while sitting inside.
Use switch and turntable.
Use a tunnel.
Complete fourth quarter.
Complete second quarter.
Complete first quarter.
Complete third quarter.