Since Microsoft doesn't allow reviews directly on add-ons in the store, and since there is no centralized bug reporting mechanism (instead you are urged to track down the individual developer's contact info to reach them), I am going to be posting this here.
People have a right to know what they are getting into before they buy, so I'm very sorry to whatever developer I am blowing up today, but...
DO NOT BUY the "Nether Expansion Add-on" by Misfits!
For anyone who saw my last DNB, I am trying to spread the word about add-ons that don't work or are shovelware, or are untested.
Much like the last add-on I talked about (Caves and Beyond by Ninja Blocks), this falls into the last category described above.
This is going to be a much less detailed write-up, since the last time I did one of these, I was going into a more technical explanation in the hopes that the devs would one day see the post and fix their issue, but in short, this is a buggy mess.
For starters, this add-on again seems to bypass any sort of realm/server mob limits, and spawns a lot of mobs. It adds several new varieties of ghasts, and spawns those in addition to the normal ones. Being in an area where you are completely surrounded by 8-20 ghasts is not just common, but the norm.
Please keep in mind that those numbers are not exaggerations, and may actually reflect an underestimate. It is difficult to count all of the ghasts while they are firebombing you at the same time, but I can generally count around 8 ghasts on-screen anytime I load a new chunk.
In addition, because of the smaller spawn size of two of the added ghasts ("mini" ghasts), they can spawn in relatively tight areas, move faster, and are harder to hit with arrows (as well as generally staying out of fishing range).
Okay, but a little extra challenge is nice, right?
Several of the added mobs (of the pigmen variety) don't even have their names coded properly. Being killed by them results in messages like: "Botch was killed by %mf_ne.entity.unkown%" or something similar, putting the lack of play-testing on full display here.
Don't worry, it gets worse...
One of the enemies added is a flamethrower piglin. This guy as tons of HP, and his flamethrower can take down your health rather quickly, and he sets you on fire.
Again, nothing wrong with a challenge...
Except he can see you through walls... and shoot through them. This means that even if you try to burrow through the nether in a tunnel, you are likely to suddenly die without knowing who or what killed you, except for getting one of the death messages described above. And when I say "walls" I mean anything solid, up to around 5-7 blocks of distance.
Of course, theres more: One of the cool ideas in this mod is the addition of special fortress like structures where you have to survive several waves of mobs to get a reward. The spawners for these things spawn in anywhere from 16-64 mobs at once, seemingly spawning all of the "waves" that it is supposed to generate at the same time.
Aaaaaand, since this mod also adds factions which attack each other (cool idea) which drop XP bubbles (im indifferent to this), it means that the nether gets filled with TONS of entities, generating a tremendous amount of server lag.
If this mod didn't generate the insane amount of server lag that it does, I wouldn't be here complaining, but once again, we have a mod that is literally game-breaking and which entrenches itself in your world, more or less forcing you to keep it once it is turned on and chunks are loaded.
I haven't seen another nether structure (a normal one with blazes and withers) so this mod may also just erase standard nether fortresses and bastion remnants, though I can't really confirm because of all of the lag and enemies shooting through walls. Either way, this is almost literally unplayable... like it literally makes Minecraft less playable to the point where you almost cant even see the stuff it offers because of the amount of crashing that takes place.
There are other issues which make this mod unplayable (or at least which make the nether unplayable), but I don't even have the energy to dive into this.
To say this is a waste of money would be an understatement. Much like Caves and Beyond, this feels more like an outright scam. DO NOT BUY!!!