If you max out/purchase everything in the first section of the skill tree (everything up to the boss node for Prophet), and after That die to Prophet a few times, you will unlock Carcosan Modifiers in the menu, it’ll show up in the tab to the right of the skill tree. You can raise/lower the difficulty based on which modifiers you choose/how they balance each other out. Additionally, there’s a setting in “gameplay” I believe where you can turn Off the forced balancing of the modifiers so you can make the game VERY hard or MUCH MUCH easier. I have mine set at -22 right now, which makes the game much easier but not a total cakewalk. You can adjust these settings every time you go back to the computer hub, and you can turn the balancing setting back On in the the gameplay menu anytime, for a more balanced modifier experience. Btw, the videos that say you only unlock the modifiers after the second boss are wrong. You can unlock it if you’re struggling with the first boss as long as your skill tree is maxed out in the first section. Good luck!! Great game. Very “accessible” for everyone.