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

That was quick!

Spoiler

All of the new replays are the intended solution!

Here are my updated solutions after the beta test. 

I can confirm that there are some really good levels in here! 

@Guigui: You might want to add the approximate difficulty of the pack in the topic's title like the other packs. I would suggest around Medium or Medium-Hard.

I got the resolves here! 

Looks a lot better this time! 

Just posting here to let everyone know about the update to a few levels. These changes may break existing replays, especially for the level 'Diving Chamber'. See above for more details. Special thanks to IchoTolot for finding these backroutes!

I am glad to present my level pack : Save One.

Each level in this pack has this gimmick where you have a bunch of lemmings but can only save one.
To this end, I had to resort to many tweaks in the level design : limited skillset, traps, locked release rate (gosh how powerful is this thing!), death awaiting around many corners.
Maybe this gimmick will have you think of the game in a different way than usual : play all for one, not one for all.

Of course I am sure many of you master solvers will try your best to break the gimmick, and succeed... Even though I put much care in ensuring this is not possible, I am impatient to see how you will backroute some levels and save many Lemmings!

This small pack consists of 16 levels split in 3 ranks of roughly increasing difficulty : Eon, Neo, One.
I consider the levels to be of moderate difficulty, and hope some of the later ones will require you to think more than a little to clear.

Pack is attached in this post, with the required style. Unzip in your main NeoLemmix folder.

In order to lighten the bad mood where all lemmings will die but one I attached famous, fun and catchy musics to the levels. Can you recognize them all ?
Accept download and unzip in your main NeoLemmix folder :
https://drive.google.com/file/d/1hFaCTmUTf6kiE7t9m8ph6prst8MkFL_Y/view?usp=sharing

Many thanks go to IchoTolot for playtesting the pack a lot and giving me advices to improve all.
Also to Strato Incendus for letting me use his handmade musics of the original OST. I used 3 of his songs in remixed original levels : I Am E.Z.T., Eroded Ark, Clappy Clapple.

Here are some screenshots of 3 levels, one in each rank.

One 4 : Clues Do  Three brothers and sisters try to reach the exit.


Eon 3 : I Am E.Z.T.  Time to get your revenge on the T.!


Neo 2 : S.M.S. (So Many Spikes) Easy when you know how ?


I thank your for reading and hope you have fun with the pack.

Quote from: Guigui on September 02, 2025, 09:53:00 PMI did try the first 2 levels, could not solve them 
I love the setting and the mood though, lots of attention went into details for everything. Will try to give the pack more time when possible.

Thank you and good luck!

Quote from: IchoTolot on September 05, 2025, 02:31:06 PMI played through the pack and I am really impressed about the variety and quality of 1-lemming puzzles in here (even if there are some neutral/zombies/cloners here and there)! 

A couple of solutions seem slightly backrouty, but that's up to you to decide. 

Difficulty wise I would say it is slightly easier than Lem Runner, but not by much. Still a hard pack for sure!

I attached my solutions. 

I'm impressed that you managed to solve them so quickly, well done!
Most of your solutions are intended, but there are a few backroutes:

Spoiler

00 Prologue - Backrouted... I may need to rework this one
01 Maverick - Differs from main solution, but uses all skills, so I consider it valid
02 This Erosion - This one doesn't really have a set solution
03 Building, Fencing - Intended solution
04 Autopilot - Backrouted, but the backroute is very impressive! Fortunately this one seems relatively easy to fix.
05 Bugs in the system - Intended solution
06 The Split - Intended solution
07 Hanging Gardens - Intended solution
08 Top of the Ladder - Intended solution
09 Pillarist - Intended solution
10 Blockhead - Has no set solution, any route is valid
11 Undertow - Backrouted! Fortunately, this one also seems like an easy fix.
12 Drowned Rat - Has no set solution, any route is valid
13 Bell Toll - Has no set solution, any route is valid
14 Diving Chamber - Major backroute - the level will need a complete rework
15 Disjoint Disunion - Differs from main solution, but uses all skills, so I consider it valid
16 Babel - Very impressive solution! Differs slightly from intended solution, but not enough for me to consider it a backroute.
17 No Turning Back - Intended solution
18 Silver Mines - Intended solution
19 Daybreak - Intended solution
20 New Leaves - Intended solution
21 Epilogue - Intended solution

I'll get to work on a fix for a few of the levels

Granted, except now everyone makes spam bots and gets a full inbox so they can't receive any messages

I wish that there was finally a new PaRappa the Rapper game

I played through the pack and I am really impressed about the variety and quality of 1-lemming puzzles in here (even if there are some neutral/zombies/cloners here and there)! 

A couple of solutions seem slightly backrouty, but that's up to you to decide. 

Difficulty wise I would say it is slightly easier than Lem Runner, but not by much. Still a hard pack for sure!

I attached my solutions. 

Ok then fixed it now, thanks for clarifying and pointing out I overlooked the save all in Rule 3.

For Lix level creators, the following applies.

Rule 1
-1 of everything classic skills
-any tileset just no mixing
-use the corresponding entrance/exit to the tileset you are using.
-steam flingers/springs/launchers/t-beams are not allowed.

Rule 2 (no queries here)
-2 entrances
-2 exits (both must be used)
-2 lixes
-2/2 save requirement
-no climbers, floaters, runners
-must be some working together in some way

Rule 3
-raymanni_lab tileset
-classic skills only
-10 lixes must come out of the hatch
-10 lixes must be saved.
-only objects from the lab tileset can be used (has lab/... in the name of the object).