"The Necromancer" is backrouted pretty bad and I doubt it can be fixed easily if at all. It might be easier to remove it.

backroute fix for Snowhere. Original replay should still work.

Congrats on the child to come Armani, you're in for a real investment 

Rest assured that we'll wait for your pack, see you when the kid is 20 or so and you'll get time to finish it !

I've had a lot going on in real life lately and I've also got some big news.

My girlfriend is expecting, so we're kind of rushing to plan a wedding... probably before the end of the year (she's about two months in now)
Definitely not something I had in my roadmap for this stage of life but hey, it is what it is.   It looks like I've unlocked a new life quest too soon.

So... I'll probably be less active this year and maybe next year too. That said, the original release date by the end of 2026 doesn't look realistic anymore. This project is still happening 100%. I'm planning to finish it for myself and for everyone who's been waiting. Things are pretty hectic for me right now, but once everything settles down, I'll be back at it, hopefully with better time management stats.
As most of you know already, I'm really passionate about making and playing custom lemmings levels, so there's no way I'm abandoning this level pack!

I'll let you know if anything new about this level pack comes up

Another one I'm late to the party for Having completed GodLems and Lemmings Surges some time ago, this was the one pack of Duuddu's I had yet to finish. Nothing in this pack is easy and despite its name, the first rank starts off pretty difficult. Normal 1 is where things get really tough though, and I'd have to say this is probably the hardest level in the entire pack, at least for me. Took so long to see any possible solution through about half a dozen separate visits! As is often the case with Duuddu's levels, the difficulty comes from a minimal skillset and the extreme precision required.

That's probably my biggest gripe here actually, too much pixel-perfection needed and too much fiddly execution (a fair bit of RR fiddling as well as precise timing), which I'm a not a huge fan of. That said, there are some problem-solving gems and it's worth persevering with levels like Normal 1. Normal 4 was also quite tough, again, mainly due to the absolute precision needed. The Hard rank maybe lives up to its name although I'm not sure it's a lot harder than Normal overall. Hard 1 wasn't as bad as I expected, though it is very fiddly. Hard 2 gave me the most trouble in the rank; very long solve time! Hard 3 eemed a bit too easy for the rank but sometimes a breather is welcome! Hard 4 not too bad, though took a while to see a solution and Hard 5 is difficult, but only in terms of the execution. I could see the solution very quickly, but the timing required is very precise.

Thanks to Duuddu for this neat little pack! Replays attached.

Wicked 16 is possible without the bomber.  Still 5/6, though, as one of the lemmings ends up splatting, and there's no extra skills to prevent it.  This brings the level down to just 1 Builder.

Wicked 16 No Bomber

The first lemming mines from a precise location so that he breaks through above one of the chains.  Lemmings 2 and 3 float.  #4 also walks out of the miner's tunnel and ends up splatting, the one allowable loss.  #5 builds to delay him, and #6 turns off the miner's tunnel and climbs to the left.  The miner should finish just before #5 reaches him.

Things have been quiet for a while now, so I just want to post an update on current progress.

I've played up to 4-17 in version 4, and have been continuing to fill out the spreadsheet with colour coding showing how much I like each level. Will has given his own feedback on the grey and pink highlighted levels in ranks 1 to 3, in addition to mobius's feedback above, so some of those I was unsure about are definitely staying.

I noticed that starting at the start of rank 4, nearly every level is getting rated highly, and looking ahead, I expect this to continue for the rest of the pack. So I think that at this point it's pretty safe to work on the assumption we will keep over 200 levels total, which means it makes sense to go ahead with the split pack.

I don't want to reply to everything said above, as I'll save most of my thoughts on individual levels for the round-up posts where I propose a selection for each rank. One thing I'll say now: while in most cases we are compiling existing levels and not changing them (other than to fix backroutes), we certainly can make changes if there is a good reason for it, and this can sometimes make the difference as to whether a level is worth keeping or not. For example, in 3-23 "A Small Problem...", the reason I rated this level low at first is that there are four groups of lemmings, each of which gets dropped into a narrow honeypot and has to be built out by stacking eight bricks from separate builders. The rest of the level is fine and (as mobius points out) interesting enough to keep; so the obvious solution is to make the honeypots smaller so that each crowd can be released with a single builder.

"Let's Split" is just not fun. Fifty lemmings must be saved by assigning every single one a climber, floater or miner; the bridge up to the top exit must be completed exactly after all the floaters have gone past, and there is no interesting puzzle in getting the timing right; it's just trial and error, with all that repetitive skill-assignment to be done again with each trial. Will rated this "Worst level so far" 

Since there hasn't been any feedback specifically on my proposed selection and ordering for rank 1, the next task will be a similar draft for rank 1 of the second pack. This does not mean the first rank is set in stone; when we have more of an idea of the shape of the pack overall, then we might end up making different choices there.

It works now, thank you.

The music and styles have to be set up correctly, beware of the place where you unzip them :

NLFolder/music/psp/files.ogg : a subfolder of the music folder is required.

NLFolder/styles/psp_crystal and the others : no subfolder of the styles folder required.

here are the PSP styles, music, and levels.

I'm searching for this pack of the PSP Lemmings game in NeoLemmix format.
Though the link in OP is broken. Anyone has the pack stored somewhere ?