Your best friend when it comes to making modpack

First of all, this review mainly targets the 1.12.2 and below versions of CraftTweaker.

CraftTweaker has awesome features helping you create the modpack you want to create. It has tons of options like replacing ingredients in every recipe, which can be used to allow plug and play with some mods even in total conversion modpacks.

It has an awesome documentation that, unlike KubeJS (at least from what I could find), also covers 1.12.2 and other versions. What's even better about CT is that it still gets updated on older versions.

I have to remove one star for gameplay since you have to restart your modpack every time you change something in order for it to take effect on 1.12, which CT blames Minecraft for, but there are some other mods which apparently can still reload on this version.