Afterglow app icon: a glowing meteor crossing a violet star field

afterglow

Run classic After Dark screen savers on your modern Macintosh.

Afterglow is a modern macOS app that runs After Dark screen saver modules from the classic Macintosh era. Over 300 modules are supported, spanning the original 1989 release through After Dark 4.0 release in 1996, including expansion packs from Berkeley Systems and other publishers.

Modules aren't included, but importing is easy: drag and drop modules, disk images, or compressed archives into the app and Afterglow extracts and imports them. You can also browse and install software releases from the Internet Archive without leaving the app.

You can even configure classic modules to run as your modern macOS screen saver!

Download — coming soon Universal binary · macOS 15+

See it in action

Features

Companion module for macOS

Afterglow screen saver

Running animations inside an app is well and good, but the fun of screen savers is in the surprise and delight of returning to your computer and seeing something unexpected: a trippy psychedelic fractal, a procedurally generated mountain landscape, a Bad Dog defiling your desktop.

Afterglow makes this possible through a companion screen saver module for modern macOS, allowing you to choose from any of the modules you’ve added to Afterglow.
Yes, you can run Flying Toasters!

Bring your own modules

Installation Sources

Afterglow does not provide After Dark modules, but makes it easy to import them from a wide variety of sources: bare module files, StuffIt archives of module files, disk images of the original installation media, self-extracting installers, and HFS disk images. Whatever you have, if there are modules in there, there’s a good chance you can simply drop it into Afterglow.

Lost your floppies? The built-in Internet Archive browser may help you find your lost media.

And more...