Automobiles Pack
APercy

Collection of automobiles

Edit Skin
Johannes Fritz

Advanced player skin customization

SkinsDB
bell07

Custom player skins manager with support for 1.0 and 1.8er skins and inventory skins selector

3D Armor Flyswim
sirrobzeroone

Adds Flying and Swimming animations to base character model for 3d_armor

Collectible Skins
Zughy

Wear and unlock skins

Vehicles
D00Med

A mod that adds an api for cars, planes, and other vehicles.

Emote
sofar

Provides player emotes and an api to make the player model sit, lie down and perform other actions.

Skinmaker
GreenXenith

In-game live player skin editor.

SkinChooser
mike.monkeybiter

Open skinsdb by right clicking a node

GC Gamemode
stellarorion

Easily switch between the survival and creative inventory

Library Mount
Panquesito7

API Framework for mounting objects.

Discrete Player API
Hume2

A library for games which attaches players to node grid

Spectator Mode
jp

A mod for Minetest allowing you to watch other players in their 3rd person view.