Udemy - Online Courses - Learn Anything, On Your Schedule
Castle Game Engine - An open-source 3D/2D game engine for ObjectPascal.
Adobe Captivate Prime LMS - Adobe Captivate Prime LMS is easy to setup and helps in delivering engaging learning experiences in a personalized manner across devices.
Cyberix3D - Free online 3D Game Maker. Make your own 3D games online!
Moodle - Moodle is the world's most popular learning management system. Start creating your online learning site in minutes!
Open 3D Engine - Open 3D Engine is an open-source 3D game development engine in real-time.