A shareware emulator for DOS.

An Atari 8-bit emulator that supports Winsock 1, OSS Supercarts and has better Sparta Dos support.

An open source 130XL, 400, 400XL, 800, 800XL, and 5200 emulator for Unix and Windows.

An open source 800, 800XL, 130XE and 5200 emulator for BeOS/x86, DOS, Linux, TOS, Unix, Windows, and Windows CE.

Macintosh port of David Firth's Atari800 emulator.

MacOS X port of the Atari800 emulator.

Atari800 port for Win32

Windows port of Atari800 based on the original Atari800Win v2.5c sources.

A MacOS X port by Richard Bannister of Rainbow.