Hm, the first tyrant was beaten only 138639 times... It doesn't include the Japanese numbers because their online component of the game is disconnected from the Western one, but it's still worrying. I think Western sales are less than twice of that.
I finished chapter 11 yesterday at level 43 and with 30.38% exploration. The last chapter is ready, but I'm not sure if my level is high enough because the chapter 11 boss was level 45. My playstyle was exploring with planting probes and recovering parts without level grinding. But I used the online tickets to craft some powerful gear and upgraded all stores to level 5. I always had much Miranium because I planted probes in Sylvalum and Cauldros before the story even came to Oblivia (yeah, with that 10 minute swimming, lol)
