It feels like
1989 again.
Atari System Emulator brings the machines, their quirks and their games to Windows, macOS and Linux. Faithful where it counts; inventive where it can be.
Latest ASE release
See the latest release and downloads on GitHub.
The ST, down to
its character.
ASE recreates the ST F/FM, Mega ST and STE, with their sound, video, MIDI and storage. Then it gives you new ways to enjoy what those machines made possible.
Built for the details
68000, YM2149, STE DMA sound, blitter, overscan and mid-line palette effects. Floppy, ACSI and GEMDOS drives bring the software with them.
Your games, in one place
Browse a visual game library, use save states and inspect memory or graphics with the built-in debugger and bitmap explorer.
See and hear more
Choose an Atari monitor, a home TV or pixel-perfect output, and explore two ASE features that take the original artwork and music somewhere new.
Hidden colours,
revealed.
ST artists built shades and gradients from alternating pixels: tiny checkerboards and dot patterns. ASE recognises the repeating pattern and turns it into a real intermediate RGB colour, then smooths the stepped gradient while keeping text and edges crisp.
Drag the divider or use the slider to compare Panza Kick Boxing with the effect off and on.
Read about picture settings
Three voices.
A new orchestra.
ASE includes Roland MT-32 emulation for Atari ST games with MIDI music. Its MT-32 Toolbox goes further: map any of the YM2149's three voices to an MT-32 instrument while a game plays, even if that game never supported MIDI.
Choose a bass, lead or all three. Save the combination as a profile for games launched from the library. Built-in MT-32 emulation requires your own Roland ROM images.
Read about MIDI and MT-32Take a closer look.
An emulator with a proper desktop, a library for your games and tools for looking beneath the screen.
Ready to
boot up.
Download the latest release, read the guide and visit the repository to follow ASE development.