All rightie, next stream will be tomorrow, Wednesday, September 2, 2026 at 4PM PST (23:00 UTC). Tomorrow is pretty much the only good day left this week that I'm able to stream, as I anticipate a busy weekend and hence I won't be able to stream at all this upcoming weekend. Looking ahead, I'm not too far from the infamous level that held up my being able to solve all of NepsterLems for 3 years, and there's a very likely chance I'll be playing that level in NepsterLix tomorrow

See you at the stream tomorrow if you're able to make it!  

Im currently playing the pack, started with the Original rank.

Nice level design with some deceptions here and there. Also kind of tough levels, I could only solve 4 of them in approx 3 hours.
Currently stuck in Original 5 Cross the Wall, believe it or not I am not sure how to cross the wall !

Hi! It was a half-failed successful UI experiment. We don't keep this -1 button exactly as-is, but I learned a lot.

The old button (as in the current stable Lix 0.10.34) was rewind-to-previous-skill. When you pushed it, the view rewound to the most recent skill assignment, i.e., to the latest assignment that is still earlier than the currently viewed physics update. This didn't change the replay, it merely rewound the view.

The experimental button (-1 in the screenshot) doesn't rewind, but instead changes the assignment to happen earlier by 1 physics update. Then it recomputes physics (based on that changed history) to the currently viewed time.

Inspiration came from watching kaywhyn play Lix. kaywhyn used the rewind-to-previous-skill in the following maneuver:

• Misassign skill, but don't know yet that it's wrong.
  
• Let physics play on to see the outcome.
  
• Press rewind-to-previous-skill.
  
• Rewind 1 extra physics update.
  
• Reassign the skill. This cuts the skill from the replay and inserts a skill that is 1 physics update earlier than the deleted skill.
  
• Let physics play on to see the outcome.
  
• If not happy, repeat from #3.
  

kaywhyn complains that this is too elaborate.

Idea: Merge everything that happens from #3 through #6 into a single invocation of the -1 button:

• Misassign skill, but don't know yet that it's wrong.
  
• Let physics play on to see the outcome.
  
• Press the new -1 button. This pulls the misassigned skill earlier by one physics update and recomputes history. You don't have to rewind.
  
• If not happy, repeat #3.
  

The outcome is exactly the same in both workflows.

Downsides:

• I threw the -1 button onto the forums here without explanation. It was deliberate not to explain it. kayhwyn didn't understand it immediately. This is a problem on my side, not on his side. User interfaces should be clearer than this.
  
• Repeated invocation of the -1 button pulls the skill so early that it fails to apply. E.g., a single lix falls, then walks. You can assign builder at any point to the walker. You can then pull the builder assignment earlier, but if you pull it so early that the builder assignment would now be to the faller, it's invalid (fallers can't build). Where is the skill?
  
• You have no way to see in advance whether the -1 button will help you or if it will merely eat your skill. You only see its outcome at the later game time, not the time of assignment.
  
• Some invocations will look like it pulls back by some random amount because you always see how it has played out in the future. It's hard to build the correct mental model from observation.
  

-- Simon

Honestly, I have no idea what is different...?

Thank you !

Firstly, no problem at all, and thanks for the well wishes, they are really appreciated right now.

Tough 17 is just an all around bad design haha, I've tried to make it work but I'm come to the conclusion it's just not going to work how I expect it to, so I will just leave it as a precious memory as to what it could have been.

Mogok Stone Tract is a work in progress, it is in the next level pack I'm making and it's nice to have references in order to make it a better more complete level, so again, thank you and everybody for that. I'm glad you enjoyed the 2 reworked levels.

The note on the ID's has been noted and taken.

Tough 3 is an interesting one isn't it, I watched Ichos solution and was amazed how you both come to the same solution I've attached the replay for Tough 3: No justice in this reply but please be assured, your solution is fantastic.
I do intend to do a video with the intended solutions for the pack now I'm finished with it and will continue on with pack number 2.
Thanks Kaywhyn, you're a real one. 

Oh that's ok, I'm sure it happens to all of us when we release level packs on the forums, there is always something which gets overlooked.

Even I'm guilty of making mistakes! 

That's brilliant, love the amount of classic sound effects you have on it on a cycle.

Beats my official one I bought from Paladone around 2018 time which only does cycles of the sounds the Lemmings make on the PSP port when they exit + "Let's Go".

Love the T-shirt your child is wearing too, I think WillLem has the same one and he wore it at the Leeds meetup recently.

Hello @Nota_Steve,

Thank you so much for sending your condolences to me during my NepsterLix streams both last week and this week when I had a rough time last week after I found out about the passing of my 8th grade science teacher! You and your family are also in my thoughts and I hope things look up for you in the future Anyway, I've resolved all the Tough levels that changed in V2.2 and I've attached my entire replay collection.

Some remarks:

- The file listing the ranks in the zip still shows the incorrect extension of .txt. I've fixed it for my copy, but it should be levels.nxmi, not levels.txt

- You don't need to change the IDs of the levels you updated due to backroutes. Instead, you need to give the repeats of the pack a different ID from the original, easier level. Any level that isn't repeated later in the pack doesn't need its ID changed. For example, in my MRC (mass replay check), Easy 17 passes with my Tough 21 replay. In this case, you want to make sure Tough 21 has a different ID from Easy 17's so that it doesn't confuse the MRC. There's still several cases of matching ID's for the pack, but it's fine, I have 90 replays, one for each level of the pack

The updated Tough 11 and Tough 19 are much harder than ever before and took me a while to resolve. For the former, the new ice steamer blower trap makes it much harder to save the right entrances. My solution still seems to be a backroute though.

For the latter, builders were the biggest problem for me. Not sure the way I made a turnaround point for the neutrals is intended though. I also managed to have a blocker to spare, though my new solution doesn't seem any more cheesy than my old one and hence is likely still fine

Tough 17 sadly should be another bad backroute

I'm still curious as to what you intended for Tough 3 When Icho's video for that got published a couple of days ago, I checked and saw that he pretty much solved it the exact same way as I did. However, in my LP, you commented that my solution isn't intended but acceptable, meaning Icho's solution would be acceptable as well. Any chance you might pass your replay along for Tough 3? 

Thank you Ron Stard.

I'll let you in on a little secret. I'm making another Lemmings SMS Romhack, this time recreating all the Mega Drive/Genesis levels and repainting all the stock levels. I haven't shared that anywhere else yet. I'm sharing it here first.