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Glulx is a portable VM, like the Z-machine. Unlike the Z-machine, it uses 32-bit data and addresses, so it can handle game files up to four gigabytes long. Also unlike the Z-machine, it has native support for Glk I/O, so game files can use any capability Glk provides. However, like the Z-machine -- again -- you can write games in the Inform language and compile them to Glulx game files.

Implementations

Interpreter Link Format System Updated Multimedia support
Spatterlight Download ADRIFT 4, ADRIFT 5, AdvSys, AGT, Alan 2, Alan 3, Glulx, Hugo, Level 9, Magnetic Scrolls, Quest, ScottFree, TADS 2, TADS 3, Z-code, Other macOS 2026-08-17 Colors, graphics, sound
Parchment Download Play ADRIFT 4, Glulx, Hugo, TADS 2, TADS 3, Z-code Browser 2026-08-01 Colours, graphics, sound (in Glulx only)
Gargoyle Download ADRIFT 4, AdvSys, AGT, Alan 2, Alan 3, Glulx, Hugo, Level 9, Magnetic Scrolls, ScottFree, TADS 2, TADS 3, Z-code Windows, macOS, Linux 2026-02-08 Different for each game format
Lectrote Download ADRIFT 4, Glulx, Hugo, Ink JSON, TADS 2, TADS 3, Z-code Windows, macOS, Linux 2025-10-04 Color, Graphics (No TADS multimedia support)
Windows Glulxe Download Glulx Windows 2025-07-19 Color effects, graphics, sound
Fabularium (F-Droid) Download ADRIFT 4, ADRIFT 5, AdvSys, AGT, Alan 2, Alan 3, Glulx, Hugo, Level 9, Magnetic Scrolls, ScottFree, TADS 2, TADS 3, Z-code Android 2025-01-11 Colors, graphics
Gelek Vanilla Download ADRIFT 4, AdvSys, AGT, Alan 2, Alan 3, Glulx, Hugo, Level 9, Magnetic Scrolls, ScottFree, TADS 2, TADS 3, Z-code Linux 2024-09-18
Frotz for iOS Download Glulx, TADS 2, TADS 3, Z-code iOS 2023-09-24 Color, Graphics (No TADS multimedia support)
Windows Git Download Glulx Windows 2023-07-19 Color, graphics, sound
ElseIFPlayer Play ADRIFT 4, Glulx, Hugo, TADS 2, TADS 3, Z-code Browser 2023-06-29 No multimedia
Parchmap Play Glulx, Hugo, TADS 2, TADS 3, Z-code Browser 2023-06-17


Tags: vm   gamedev   specification   bytecode   interactive fiction  

Last modified 11 September 2026