This time, this should be intended  (plus a similar but backroute-ish alternative solution )

resolved updated levels 

Spoiler

Eon2, Eon5 - look intended for me now
Neo1 - probably intended? since you said the intended solution is counter intuitive and I made the turn-around point farther and save more time as a result.
One2 - looks intended
One5 - another nuke solution.. I'm pretty sure the intended solution has some kind of nuke interaction in it to compensate the lack of destructive skills, but I'm not sure if this is the one you intended.

resolved updated 3 levels 
These look mostly intended, except for autopilot level

Here're my solutions. I guess I backrouted two or three levels.
This pack really shows how much puzzle potential the new objects can provide.

I just played through the pack and here're my replays. (two replays for One_3 and one replay for every other levels each.)
I managed to save multiple lemmings on only one level "Aquarium Deception". The talisman said save two but I managed to save most of the lemmings.
There are many good levels but my favorite was "So many Spikes", that was a brilliant level

also added new packs to the list
If there're any missing packs, let me know!

LDC#32 is now included to the pack.

So it's basically a saturation arithmetic except that the upper and lower limits are determined dynamically from the list itself.

I think it's pretty common in video games. In Slay the Spire(which I enjoyed a lot this spring ), your strength and dexterity can't exceed 999 so no matter how many buffs overlaps you get your strength and dexterity are clamped down to 999. Similary you can't have less than 1 max hp so no matter how many debuffs overlaps you can never die by losing max hp.

I've been having busy days, I just bought my first house so my partner and I have been renovating it.
but I think I can finally start making some levels for the pack

Welcome Velixi! glad to collaborate with you!

@IchoTolot
Everything is intended

QuoteI picked up that it shall include a neat new trick, but I haven't found it yet and all other things fall short 1 lem or 1 skill. Seems to be backroute proof for now. 

I really hope it is something clean and elegant though and not some finnicky shimmier+stoner step up - I tried that as well but it did not work.

But lets see and try again

no shimmier+stoner shenanigan needed. I'm not sure if this is a 'neat' new trick but I'll let you be the judge of that.



For those who might want the solutions to my levels;
https://youtu.be/MtQXhaJtBK4

If you're in LF discord server you would probably know already, but I'm working on a new NL level pack. I'm making this topic for archival purpose and to show you what I've done a bit.


General Information
It'll be a Lemmings 2: The Tribes inspired pack, so I'm going to pick several (I'm thinking of 15 tribes in total, but can be changed) tilesets and create all new tribes of my own. There'll be 10 levels per tribe just like the original game. I haven't made a decision on the pack name and I would be happy to hear some suggestions on this.

Difficulty
There'll be soft resets between each rank, meaning that each rank will get progressively harder but first half of the next rank won't be harder than the second half of the previous rank. The overall difficulty of the pack will span all the way from easy to very challenging.

Progress
hit the 100 level mark recently

Release Date
My interests come and go like the seasons, so I can't promise anything but I can still provide a number:
I hope I can release the pack at the end of 2026.

Tribes
L1: Brick, Bubble, Dirt, Fire, Rock -> They all use classic 8 skills only.
L2: Egyptian, Outdoor, Space
Custom: Chalk, Cloud, Honeycomb, Machine, Mineshaft and 2 more
I can still add new tribes so feel free to suggest any tilesets you'd like to see in this pack. It may or may not be added.

Previews

images

Brick - A Dance of Fire and Ice 2


Bubble - With Ribbon


Rock - End of Fight


Chalk - Lo-fi Memories


Egyptian - Yuna's Room


Outdoor - At the Peak of Flowering


Marble - Where The Stories Begin


Mineshaft - Buttered Cat Falling Down

I'll try to post my progress on the pack from time to time.
All suggestions or questions are welcome.

@Crane
Nah, this level is not that precise.(somewhat precise though )

R1 v7

This might be actually intended

@kaywhyn
resolved updated levels! 
I can feel my solutions to Hardcore Molten Problems are acceptable now.   I especially like the oh-no level. Very cool and elegant solution.