Vanilla Survival 1.13
Address: s.mcnsa.com or play.dmzcraft.com
Description: DMZ has a fantastic community of players, close friends, and helpful people. Some have been here for years, and some only a few days. This is the place to find community projects, towns, teamwork, games, and tons more!
FTB Stoneblock 2 v1.10.0
Description: Kind of like Skyblock but instead of the void there is just stone. Lots and lots of stone.
FTB Revelations v3.0.1
Description: A little bit of everything when it comes to minecraft mods from magic to technology. If you dislike the grind, automate it!