Bed Notifications
Bob64

This adds chat messages that tell other players when a player leaves or enters a bed and when players can sleep.

Anti Grief Privs
livphi

Adds water, lava, and tnt privs, that allow server administrators to decide who gets access to water, lava, and tnt.

Medieval (Fork)
DragonWrangler

an addon to darkage

Pedology
Wuzzy

Adds some different ground blocks in several wetness levels; the wetness slowly flows downward.

Ghost Snip (spectrum bow)
scorpiox8659

Add a bow named "Ghost Snip"

Item Repair
ApolloX

Repair many items with ease.

Periodic Elements
ResendeTech

Adds the periodic elements

Saw
Sofik5800

Saw that deleted from MultiCraft

Nodeternal Darkness
Kimapr

make nodecore very dark

Glamorous Deaths
mixer

Announce player demise via server-wide death messages

scaffolding (flux's version)
fluxionary

scaffolding, to help in building projects.

Equipment Examiner
AntumDeluge

A node that will examine the specs of equipment.

Frozen Energy
bell07

Use frozen energy crystals to freeze water

Troll
ROllerozxa

Troll your friends and foes nicely!

No Fall Damage
Wuzzy

Disables fall damage.

Digiline Stats
Darin755

A mod that adds a few digiline blocks to get server information

Candy
Kostivar

Adds candy which you can make from candy ores.

Worldedge
Don

Teleports the player to the other side of the world when they reach the edge.

Kitty/Kitto Ores
nemokitty9

Nemokitty9's own ore pack. Includes Tools!

Un-Craft Table
Troodon

Adds an uncraft table

Sneak Drop
Flay Krunegan

Pick up all items on the ground in a 3 block radius by holding sneak.

Staffs
CalebJ

Staffs with various uses

MC2.0 for MineClone2
1F616EMO

Minec**** 2.0 April Fool's features

Playtimes
Neuromancer

/playtimes command lets users see the playtimes & last login time for all users on the server

Wormball
MisterE

Wormball subgame

Aether
iarbat

Adds a hard to obtain yet powerful substance called Aether.

mod utilities
theFox

Providing some utilities that can be used by other mods.

replacer (flux's redo)
fluxionary

provides a node replacement tool and a node inspection tool. slightly different than the other replacer variants.

newplayer
cheapie

Yet another show-people-the-rules thing

Lua2Mts
Neuromancer

Allows converting .lua schematics files to .mts files.

Fast Build Tool
playduin

Tool for fast box building

X-fangs
Octavian2011

adds suits for speed and look

gooey mess
timm

a funny addon that is a goofy time

SkillsFramework
domtron vox

SkillsFramework provides an API for creating and managing skills.

Node Touch Action
Neuromancer

Pass in a node name and a function, and every time a player touches that node, the function happens

Invisible Wall
X17

Adds a simple invisible block

Multitools
ChimneySwift

Adds a series of multi-purpose tools to Minetest

Lifesteal Mod
Jo5629_

Provides a lifesteal mod into Minetest.

Watershed
paramat

A river / mountain range mapgen

Only a Coin
Deadlock

just a simple coin, to be used as currency