Let me first say there is, for me so far, no challenge for this game. I play a LOT of games in the idle/ops/crafting/automation cycle genres. This would be a great trainer for those or for younger players. I am in the Trillions of facts (the currency you earn) a second stage and it was easy to get here. There is engagement, but not challenge. The engagement is in the great UI and the factoids themselves, though I am already seeing the same ones repeating. The only way I think there would be a challenge would be to try and speedrun this. But so far, I have unlocked all tutors so all resources are auto-clicking and I am just picking up the last of the research. Then, well who knows. This developer made some choices I like with a clean basic interface that has a fresh coat of paint and feels like brain candy.
I have really enjoyed the game because it is so visually soothing. The colors, the filling meters, the just “corner of my eye gaming” which lets me get on with my day and still feel like I leveled up something. Great game in the genre. Better than half the ones with cartoony graphics and invasive marketing.