tronblocks:
viewtopic.php?id=8556 adds a large number of blocks to create a tron type world, divided into four colors to represent the different factions.
depends:default, dye
Individual download
license: MIT public license
tronportal (nether):
viewtopic.php?id=5790 A portal system devised by PilzAdam to create a nether, and is currently the easiest way (aside from teleporting) to travel to a realm. the portal is 4 nodes wide, and 5 nodes high, with the center hollowed out. right click with a tron bit (which may be uncraftable on some servers to prevent portal greifing) to activate the portal.
Individual download
depends: tronblocks for tronportal, default for nether
license: WTFPL
thegrid:
this mapgen was created by paramat for this modpack, and as such doesn't have a thread. it creats an area 960x960 nodes, divided into 4 240x240 sections. each subsection is 3 chunks square, and can be easily modified in the init.lua file for it.
Individual download
depends: tronblocks
license: WTFPL
download
github
Spoiler
0.1.1: texture fix in the tronblocks mod
0.1.2: tron glass added