@JeremyI know it's not the place for it, since it's for SuperLemmini, not NeoLemmix, but let's keep everything about the pack in one place, so might as well be here
So, I finally managed to get Whiteout 13 -
The Snow Palace solved last night. Replay attached but if you don't have SuperLemmini set up on your machine, I do have a video solution posted:
https://youtu.be/Sx4kASx7qTESo, it is possible under the 10-minute time limit after all and hence I have finally proved myself wrong from this post:
https://www.lemmingsforums.net/index.php?topic=1793.msg92128#msg92128I have checked on NeoLemmix and my SuperLemmini solution will NOT work, as it seems you would need one more digger in order to get through the second-to-last obstacle. It would appear then that this simply due to how Lemmings on SuperLemmini can walk further into walls before turning around than they can on NeoLemmix and would therefore explain the difference in digger mechanics on the engine vs NeoLemmix. I don't think it has anything to do with the digger pits being wider on one than the other.
Even if you did have an additional digger, I think you would unfortunately be a few builders short, especially as what I do at the start needs more than 2 builders. However, since you said you don't remember what you originally intended for the level, let's just keep the current increase to 11 minutes for the time limit as the only change you made for NeoLemmix