nullworx

Building the universe starting from sub-atomic particles sounds very promising and it would probably be something I would play a lot.
However, this is a modpack where you play for 10 minutes, quit and wonder whether or not the developers just released the modpack without even testing it.

Jumping will kill you. You can jump pretty high (which can be frustrating but it's fine) and then slowly fall back down, except you take damage which will eventually kill you.
The game will give you a philosopher's stone which lets you open a crafting grid by pressing c, except you can't craft because there are other other binds that prevent that from happening. You have to manually readjust the keybinds. Bad design.
Then once you open your inventory, half your screen is covered in useless garbage. I'm talking about Roughly Enough Items (NOT JEI). You can't view the recipe of an item because the game thinks you're trying to cheat grab it so bookmarking is also entirely useless. I tried replacing it with JEI but it crashes the game when you join a world.

I didn't even have the proper opportunity to play the modpack. According to other reviews, the modpack just stops being what it claims to be mid-way through and introduces unrelated stuff for no reason so it's not even worth playing if you're interested in the modpack's premise.