Transparent video sprites for web games. Turn green-screen or alpha video into tiny .opal files, and play thousands of them at once with a ~15 KB runtime.

Play Rift Warden

Sword, fireballs, dash and thunder against skeletons, rift bats and an obsidian golem boss. 9 video-sprite files, 391 frames, every effect included.
Play Opal Dojo

The first demo: a ninja against 300 oni at 120 fps.

 Frames of the ninja's slash animation
How the game was made

Step by step: fal generation, pinned loops, QA, encoding, code.

 Keyed hero animations
Opal Studio

Crop, key, preview and export .opal in the browser.

 Trailer still: the horde closing in
Watch the trailer

35 seconds, with captions, recorded from the game.