Here is a spreadsheet of almost all content posted on the NeoLemmix Levels board as of today (5 July 2023). The only packs I've excluded are any that were fully incorporated into later packs, and migrations of the original levels. (If I've missed any packs I should have included, let me know!)
In many cases, I've trusted authors as to their claims of how many ranks and levels were in a pack, so let me know if any of these are wrong. The "date posted" column has the date in the first post of the forum topic; for NL conversions of older packs, this may not match the actual date of publication. I haven't gone to the trouble of looking through the long Lemmings Plus topic to get a publication date for each pack.
Since this is a spreadsheet, you may find it interesting to sort by author or by number of levels to get some interesting statistics. You could also use this spreadsheet to track your progress on packs solved (I would be interested to see kaywhyn's especially!)
Is there any other data you'd like me to add to the spreadsheet? Please bear in mind that other data (such as talismans, or yes/no on whether the pack exclusively uses the original 8 skills) might be a lot more time-consuming to collect, as I would have to install all these packs and examine them in the Level Select menu, so I make no promises about when I might get round to this.
