XRoar, a Dragon and Tandy 8-bit computer emulator

XRoar emulates the Dragon 32/64; Tandy Colour Computers 1, 2 and 3; the Tandy MC-10; and some other similar machines or clones. It runs on a wide variety of platforms. More features.


Source code version 1.4.2, released 2023-06-16: xroar-1.4.2.tar.gz. Other downloads.

Debian snapshot builds are available in the Apt repository.

Ubuntu snapshot builds are available in this PPA on Launchpad.

Mac OS X binaries: 64-bit x86 Mac OS X (built under 10.13)

Windows binaries: 64-bit Windows, 32-bit Windows (cross-built using MinGW)

Git repository: git clone https://www.6809.org.uk/git/xroar.git

The manual is available in these formats: PDF and HTML. See Getting started for a quick guide to running XRoar. See Building from source for instructions on building from source. Be sure to read about any Recent changes.

Some loose notes about cross-compiling for Windows using Debian: Building XRoar for Windows.

Firmware ROM images are required to usefully run this emulator. If you have difficulty extracting these from your real Dragon, CoCo or MC-10, dumps may be available from the Dragon Archive or the Color Computer Archive.

Important: since version 1.3, the floppy disk image write-back behaviour has changed. See Recent changes in the manual.

asm6809 is a 6809 assembler that can generate machine code to run on the Dragon.

Want a Dragon in your browser? Try XRoar Online.

Notes for version 1.4

Fixes in version 1.4.1

Fixes in version 1.4.2

For version change history, see the ChangeLog.

[n] - reported by, [by n] - contributed by, [with n] - developed with.


License: GNU GPL version 3 or later <http://www.gnu.org/licenses/gpl-3.0.html>.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

Binary packages may be linked against SDL and/or libsndfile.


Android APK: xroar-0.31.1-1.apk

Android port contributed by Tormod Volden. For more information see its readme.txt. For patches, etc., check out Tormod's website.

drHirudo has ported XRoar to AmigaOS 4 (!), available here.

Stefan Haubenthal has uploaded a build for MorphOS to aminet.

ZX-81 has ported version 0.19 to the Sony PSP and GP2X handhelds. Check for "Tandy Coco" in the list of categories on ZX-81's web site.

Similar projects

MAME emulates a variety of old computer hardware, Dragon included. Source available.

T3 and PC-Dragon, two DOS-only emulators. Source code is available for PC-Dragon, but redistribution of modified copies is not permitted, amongst other restrictions. T3 is closed source (I believe it was written in x86 assembly). These links are to a software collection site, as the original seems to have disappeared.

VCC, a Windows-only CoCo 3 emulator. Does not emulate CoCo 1/2 (beyond what compatibility a CoCo 3 had) or Dragon. Open-sourced around August 2015.

OVCC develops the open-sourced version of VCC in an attempt to make it cross-platform. CoCo 3 only, like the original.

Updated 5 Jul 2023