Amazing concept but unfortunately abandoned

Disclaimer: I mostly interacted with this mod by fighting off Mis and using some of the resources it provides (notably to craft a rifle added by this mod). However this mod also includes ways to create your own colony, which is something i have never done. On top of that I also configured the mod to start at stage 2, so i never really played with the intended progression line. That being said the main feature of this mod still is the hostile faction it adds, which is what i am going to cover in this post.

Mi Alliance is a very unique mod, adding its own faction of mobs building colonies and outposts in your world. This includes the Nether and the End, and can be configured to work with custom dimensions as well. It also has a very distinct identity with its aesthetics, sound effects (the Mis even have voice lines!) and the fact it doesn't take itself that seriously which starkly sets it apart from other mods adding hostile mobs. This mod even adds diplomacy! You will not find any other mods like Mi Alliance, and i think for that reason alone if you're looking for a new foe to face you should definitely consider giving this mod a try.

Unfortunately, Mi Alliance has not received any significant updates or news for a very, very long time and the dev doesn't seem to either have the time or motivation to work on it again any time soon. This mod is left functional but unfinished, and not super balanced on some aspects (in particular i think the planes are a pain, and that the loot tables could be tweaked to be more generous) so you might have to configure it and maybe even use a datapack if you feel motivated to fix the issues you might encounter with it. Mi Alliance does have active addons - Annexation being the main one, which also is an attempt to fixes some issues with this mod and is actively maintained, although i didn't try it so i can't really tell you what to expect with it, though it removes colonies and makes the mod generally less destructive.

In conclusion, Mi Alliance is a brilliant concept, unique at what it does, held back by its ok-ish execution and being essentially abandoned. I encourage you to give it a try though. For Mitopia!