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Retrostic
Play classic video games instantly in your browserβno downloads.
Google Arts Experiments: Blob Opera
Make four animated blobs sing opera by manipulating their voices.
ShaderToy
Explore thousands of real-time GPU visual demos.
VirtualPiano
Play thousands of songs using your keyboard.
Open Processing
Thousands of creative coding sketches you can remix.
Wikiversity
Free open courses across thousands of subjects.
This Is Sand
Pour virtual sand to create layered digital art.
Sporcle
Timed quizzes on geography, sports, pop culture and more.
CleanPNG
Browse thousands of free transparent PNG images.
Sandspiel
A falling-sand simulation where elements interact.