3d model didn't work for me. I also never unlocked crafting that I saw in someone's screenshot. I waited to buy a one shot upgrade that that scaled research points based on every $100,000 and then bought it when I had a really high income amount. My research jumped from 75% to X BILLION%. After that every hole finishes in about 10 seconds until I hit the white wall and I think it makes me miss some content. Really enjoyed the game though. I'm a big fan of "Make number go bigger" games and this one was really good despite some bugs.