Kodu. Official Portal 2 Website - Blog. Today we're opening up the beta of the Portal 2 Authoring Tools to everyone!
It's available as a free download for all owners of the PC version of Portal 2 and can be found under the "Tools" tab in Steam. The Portal 2 Authoring Tools include versions of the same tools we used to make Portal 2. They'll allow you to create your own singleplayer and co-op maps, new character skins, 3D models, sound effects, and music. Here's what's included: - Updated version of Hammer, the Source level editor - Updated Faceposer - Example maps and instances to help build new maps - Updated suite of command-line compiling utilities. Gamestar Mechanic. Sploder - Make your own Games Online - Arcade, Platformer, Space & Retro Games. Make Your Own Game with RPG Maker. Heroic learning, come play! Teach with Portals.
Clickteam - Home. Free Game Engine for Indie Game Development.