itch.io

A collection or bundle of assets together as a single download or purchase

Godot Engine - The free and open source 2D and 3D game engine

Games made with ASCII/Enterbrain/Kadokawa Games' RPG Maker series of game engines. Includes, but is not limited to the following:

• RPG Maker 2000
• RPG Maker 2003
• RPG Maker XP
• RPG Maker VX
• RPG Maker VX Ace
• RPG Maker MV
• RPG Maker MZ

Science-fiction. Commonly including things like aliens, advanced technology, and settings of outer space or distant planets. 

Unity is a game engine for 2D, 3D, AR and more

Resources for building and relating to User Interfaces, how the user interacts with your program