Adds many mods that are similar to the ones used on the Unstable SMP (and some that just make sense to have)

Noteworthy mods:

Unstable Generation (Only in version 2.0 of the modpack)

This mod adds the amplified, the great sea, the farlands, the mist, and the underworld. This mod is insanely well made and accurate and it deserves way more attention!

Orbital+ (Only in version 2.0 of the modpack)

Adds the most accurate version of the Unstable SMP's orbital strike cannons that I have seen. This also has a few more features, such as changing fishing rod mechanics so that the bobber is tied to the rod instead of the player, allowing multiple fishing rods to be used to activate different things, playing the wither spawn sound when players die, and setting a distance from deaths in which death messages will be shown.