It's a fun game, but I think it needs some tweaking. The problem is you research faster than you can afford to build/replace your assembly line. By the time you have money, you're close to upgrading again so you end up skipping half the tech tree. Also, the way the economy works is that you can only realistically have 1-2-3 products active at a time. Sure you can perhaps have more, but you would sell just a few items of each. Which leads me to the other part, where you optimize everything and end up with a lot of inventory. There's no reason for a shortage in demand. It also needs copy paste, it's a bit tedious to have to build everything manually. Overall it's fun I guess for a few 10s of hours.