Portal 2 has a community workshop were users can upload custom levels. Most are made with the in-game editor, but more detailed maps can be created with an external program, hammer.

Prevalent

workshop page

A study to recreate portal 2’s overgrown aesthetics in a momentum and laser puzzle. In retrospect, some puzzle-critical parts are a bit under-lit.

The Funnel Machine

workshop page

A puzzle with a lot of action-at-a-distance.

More

If you want to play more of my Portal 2 levels, check out my workshop collection.

Some top tier workshop creators:

• josepezdj
• Mevious
• BEN 77
• Shane (Skip past bhop maps)
• Lord_Kardok
• Azorea
• Gigo