I have played the game since 3 to 4 years ago at the time of posting this. It is a wonderful game and feels very rewarding to master. I have witnessed massive improvements and I can see there are many more to come. I would also consider it a coding game, if you like that. You can even make flappy bird.
Concisely, Trailmakers is an extremely personalizable game that fits for people who want to nerd out, and people who want to blow something up and everything between.