Spatterlight is a native Cocoa application that plays most parser-based interactive fiction game files: AGT, Adrift (except v5), AdvSys, Alan, Glulx, Hugo, Level 9, Magnetic Scrolls, Scott Adams, TADS (text-only), and Z-code. See credits file for more details.

[credits]: https://github.com/angstsmurf/spatterlight/blob/master/resources/Credits.txt "Credits.txt: Credits for Spatterlight libraries"

Download the latest release here (opens in a new tab)!

Then report bugs on the issues tracker.

Fixes for some common problems can be found in TROUBLESHOOTING.md.

[issues]: https://github.com/angstsmurf/spatterlight/issues "The issues page of this repository"

[troubleshooting]: https://github.com/angstsmurf/spatterlight/blob/master/TROUBLESHOOTING.md "Work-in-progress list of common problems and their possible solutions"

VoiceOver support. See ACCESSIBILITY.md for documentation.
Themes
Per-game settings
Easy download of game info from Ifdb
Sounds, images and text colours
Autosave and autorestore for Glulx and Z-code games

[accessibility]: https://github.com/angstsmurf/spatterlight/blob/master/ACCESSIBILITY.md "Documentation for using VoiceOver with Spatterlight"

A promotional video for Spatterlight 0.5.13b: https://youtu.be/KXbk_gpLQ8w

And another one for 0.5.12b: https://youtu.be/Y07jFFvjsnE

Beyond Zork: https://youtu.be/GzYmywCm_24

Guilty Bastards: https://youtu.be/vXjZwwlFqyQ

Necrotic Drift: https://youtu.be/Um8z7X91S8U

Cryptozookeeper: https://youtu.be/1MkdVnhZRl8

Hugo Tetris: https://youtu.be/G-tTzXso6AA

Adventure International showcase: https://youtu.be/p5Oelhsmzco

Rebel Planet and Kayleth: https://youtu.be/RygPK26_e5Q

The Sorcerer of Claymorgue Castle (Atari ST): https://youtu.be/vvoFQ49VLgE

Questprobe 2 featuring Spider-Man (Atari ST): https://youtu.be/_wA7gEhTeZE

Questprobe: Featuring Human Torch and the Thing (Atari ST): https://youtu.be/IK_KpdVIOIg

Journey using VoiceOver: https://youtu.be/9jauDyUu6Ro

Building the current version has only been tried on macOS 15 Sequoia and Xcode 26. If you have success on earlier versions, please let me know! The resulting binary will still run on 10.13 High Sierra, though.

Clone or download the source. Open the file Spatterlight.xcodeproj in Xcode. Make sure that the target is set to Spatterlight > My Mac. Press the Build & Run button.

Note that the master branch has the QuickLook plugins disabled. To enable them, you must use the release branch, which requires at least setting your Apple Developer Group ID on all targets, and possibly other changes as well.