I don’t think it’s too easy, to complete the simulator you need to spend around 8-10 hours (or even more)
This game is pretty unique, especially considering it’s a simulator. I can’t really think of anything that would stop it from gaining more players. It could be down to something small like the game icon, or the name.
After playing it a bit more, it seems to be lacking something. I think it just needs more going on in the game, and the repetitiveness of placing the cogs could put people off.
You should add more music to the game. It gets really frustrating hearing the same music for the whole time of playing the game.
8-10 hours of hearing the same music every time you log into the game? The music is great – it sounds good, but as any music, it just gets annoying.
It’s aimed at kids. Children aren’t enticed by “repairing”. You should change the name, not the game, to make it seem more fun.