Seven years ago, I began working on a mappack dubbed "Gravity Pack". The pack was originally intended to have 100 maps; I managed to complete about 40 before abandoning the project and subsequently leaving the Metanet community. About a month ago, I decided to pick up N again and played through the maps I had written. There were enough gems in the pack that I decided to try to finish it. Today, I can finally call the pack complete.
Gravity Pack contains 25 old (pre-2010) maps and 25 new maps. (I discarded quite a few of the original 40.) These aren't particularly groundbreaking or even modern maps; they're just... me. I have a tendency to put design before gameplay, although this certainly isn't to say that the gameplay is neglected. Try them out and you'll understand what I mean. I think the 2014 maps are better than the 200X maps, personally, but maybe you'll disagree.
The maps are roughly sorted by difficulty in groups of tens, somewhat similar to what you'd expect from a column-style mappack. Gravity can kill you in all but 3 of the maps. Stages 5, 13, 27, 30, 40, 43, and 49 are my personal favorites. I believe every stage but 32 is possible to AGD, although 19 and 42 may also prove extremely difficult.
I think that's it for now. Have fun!
stage 01: gravity rebel
stage 02: augment
stage 03: daydreamer
stage 04: ocean cliff
stage 05: i saw the lights
stage 06: brim
stage 07: abductee
stage 08: stable
stage 09: sparse matrix
stage 10: bismuth outcrop
stage 11: a simple complex
stage 12: glitter
stage 13: what lies beyond
stage 14: illaterate
stage 15: super intelligence
stage 16: cynic
stage 17: a fine mist
stage 18: lobsterface
stage 19: the omega directive
stage 20: the slightest imperfection
stage 21: overcompressed
stage 22: dishevel
stage 23: async
stage 24: ready for war?
stage 25: nothing up my sleeves
stage 26: speak up
stage 27: pipe dream
stage 28: alpha decay
stage 29: risky business
stage 30: melt and join
stage 31: vanishing point
stage 32: time's up
stage 33: excursion
stage 34: reconfigure
stage 35: pole juxtaposition
stage 36: alien pentester
stage 37: burning buildings
stage 38: beta decay
stage 39: monolith
stage 40: launch
stage 41: russian security
stage 42: jawsome
stage 43: hvac
stage 44: obsessive impulsive
stage 45: sidewinder
stage 46: disurrected
stage 47: golddust
stage 48: gamma decay
stage 49: call of the void
stage 50: you're already dead