user-generated

Portal 2 has approximately one million user-generated levels available on its Steam Workshop. The recently released Portal 2: Community Edition is in open beta and is a community-maintained build that enhances the existing experience without overhauling the core gameplay. New features include new lighting technology, volumetric effects, support for more detailed textures, custom campaign support, expanded scripting capabilities, and an improved Hammer map editor. Community Edition is built on Strata Source, a fork of the CS:GO engine, and has already inspired innovative mods. The mod's workshop page includes Half-Life 2 maps, enhanced texture assets, and an original puzzle titled Lesbian Kissing. The team is also working on an original campaign for the mod.