There are 4 repositories under world-generator topic.
Voxel world generation modding platform
Procedural world map generator
Procedural world generator (plugin) for Unreal Engine 4
Procedural world generator written in C++. Uses SFML for map rendering.
An opensource minecraft world generator for PaperMC & more
:goberserk: DungeonMaze Craft Bukkit plugin - An amazing world generator for Bukkit and Spigot
map generator stuff
Voxel generator based on perlin 3d noise | Python OpenGL
Add, remove, tweak and configure ore and underground generation features for Minecraft Forge
Unity project to create 2D polygonal maps. Includes a fully configurable map editor to create maps, and also some games using the map generator.
Procedural world generator (galaxies, systems, stars, planets)
End generator based on Gaea
Testing different world generation methods in the web. Implemented with HTML5, Javascript and three.js
Simple endless low polygon world generator implemented in Unity
Hassle free galactical procedural generator
A polygonal world generator.
Hero Extant: World Generator (2010)
This is a Batch script for generating multiple Dwarf Fortress worlds automatically. It also organizes the basic info/map files into their world's folder, and outputs a log file of each world's population info.
[Legacy] Custom terrain (world) generator for Minecraft
Caves-only world pack for the Minecraft world generator Terra (for versions 5.x of Terra)
Random world map generator with elevation, biomes and rivers,. Exports to JSON
World generator for Terra
Custom world generator for Minecraft. 10x more efficient than default, specifically for HG gamemode.