Kick Player on Death/Respawn
Volik

Kicks player on death or respawn.

Spawn redo
cathaya7d4

Drop-in replacement for default/spawn for more third-party biomes

City CommodityMarket
X5Dragonfire

Adds simple CommodityMarkets for city's towns etc.

Advanced Breath and Health APIS
liteninglazer

Creates APIS to allow different players to heal health and allow different players to breathe different items.

VizLib
OgelGames

Visulization Library

golden lava
GigaByte

add golden lava

DeltaTime
SkyBuilder1717

Adds deltatime API

Tile Floors
ClassicAdam

Various colors of tile flooring in 16px and 256px res

Map Fixer
Gaël de Sailly

Fix some map errors (flow and light problems)

OTP
mt-mods

(T)OTP Verification for player accounts

Kick Vote
rubenwardy

Adds kick voting using the vote API

Attachable Bomb(ctf)
pl608

Adds a bomb that can be attached to players and go off on timer

Exile Snow Fun
TPH

Adds throwable snowballs to Exile

Playerfactions Ext
IRI

extension of Playerfactions which adds sub-commands that allow you to teleport, give/withdraw privs and/or items to all members of a faction at the same time or for one player in a faction.

Random (Useful) stuff
pl608

A library that adds well... Random Stuff

Chat Filter
xXNicoXx

Chat Filter: a simple but useful chat filter mod made by xXNicoXx

Wield Gadgets
1F616EMO

Register gadgets that can be used with a hotkey

Finaluxi
Sere Motsatt

A example for aore API.

action queues
fluxionary

provides an API for queuing things for batch processing w/ various ways to specify the batch "size".

Petroglyph Maker
Neuromancer

Create your own petroglyphs on Desert Stone

topluck
Neocraft1293

TopLuck is a plugin that allows you to see your player's luck in real time.

Snow for Hades Revisited
SFENCE

Add snow to Hades Revisited via snow cannon.

Advanced Ban
srifqi

Advanced Ban: Ban a player based on its username

Gizmo's Of Carbon Machinations
ThatGhzGamer

Adds various charcoal related items such as a Marvelous Hammer to Compress things, New Gear, New Diamonds, Charcoal and Willow Charcoal.

Metadata Inspector
1F616EMO

Inspect or modify metadatas of a node

Luarocks Wrapper
lazerbeak12345

Securely Wrap Luarocks packages without needing trusted mods.

Select Item
Wuzzy

Allows other mods to add a simple form to choose a single item.

Compression
The4spaceconstants

Uses compression_api to generate compressed nodes.

Cid Music Player
ekl

Plays music

Ptracker
Jo5629_

Track a friend or an enemy with this item.

Brights
_Xenon

Adds bright stuff

Darks
_Xenon

Adds dark stuff

Level API
Hypernoot

A library for games to load levels defined as schematics

Bubbles
niwla23

Adds bubble machines

Block Bomber Mg
MisterE

Blockbomber as an arena_lib minigame

Aratox Anticheat
zanderdev

Severside Anticheat. Remove cheaters from your server automatically.

Bouncy Leaves
1F616EMO

Adds bouncy and fall damage reduce effect to leaves

filter++
rstcxk

censors swears in the player chat using the filter++ liberary

Dye Mixer
LRV

This mod removes the mixes of dyes and the crafting recipes that allow you to dye wool and make them craftable in the Dye Mixer.

Chat translate
ksandr

Adds commands to translate chat messages into the recipient's language.