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kat5200

Free#5 of 25 in Atari Emulators

kat5200: A free, open-source emulator with broad Atari system and input support. Ranked #5 of 25 in Atari Emulators by our editors (8.7/10); pricing: Free plan; best for atari 5200 and computer systems.

8.7/10Editor score

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At a glance

Editor score
8.7 / 10
Pricing
Free plan
Best for
Atari 5200 and computer systems
Free plan
Yes
Paid from
Free
Atari systems
Atari 5200, Atari 400, Atari 800, Atari 800 XL, Atari 800 XE
Facts checked
21 Sep 2026

Where it wins
- Supports Atari 5200, 400/800, and XL/XE systems
- Scans ROM libraries and supports searchable launching
- Offers per-ROM settings, save states, and input remapping
Where it doesn't
- Requires users to provide the BIOS and software files
- Does not include copyrighted BIOS or game ROM files
- Android installation uses a direct APK rather than the Play Store

Our verdict on kat5200

kat5200 is a free, open-source emulator for the Atari 5200 SuperSystem and Atari 8-bit computer families, including the Atari 400, 800, 800 XL, and 800 XE. It is aimed at people who want one application for these systems across Windows, macOS, Linux, and Android. Its graphical interface covers ROM library scanning, searchable launching, system configuration, per-ROM overrides, and emulator state management. Support for cartridges, floppy disks, cassettes, and executables gives it a broad software format range.

The standout strength is control over individual games and systems. Users can save and load states through quick-save slots and named state files, while controller input can be remapped with multiple bindings. Keyboard, joystick, gamepad, mouse, and trackball input are supported. Visual options include an NTSC artifacting filter and shader support, giving Atari-focused users more control over how software is presented. This makes kat5200 a strong fit for varied Atari libraries and mixed input setups rather than a narrowly focused single-system emulator.

Setup requires users to supply the required BIOS and software separately because kat5200 does not include copyrighted BIOS or game ROM files. That adds an initial preparation step for anyone expecting an out-of-the-box library. Android distribution also uses direct APK installation instead of the Play Store. Choose kat5200 if you want open-source, cross-platform coverage for Atari 5200 and Atari computer systems with per-ROM controls and save states. Choose another option if you prefer a store-based Android installation or software that includes the required system files.

Your product? Our editors can test kat5200 in depth and publish a review, labelled as paid · from $149/mo →

kat5200 pricing

Plans Free planFree Free to use — no paid tier required for the core job.

See plans on jillybunch.com

kat5200 fact sheet

Free plan	Yes
Paid from	Free
Atari systems	Atari 5200, Atari 400, Atari 800, Atari 800 XL, Atari 800 XE
Supported platforms	Windows, macOS, Linux, Android
Save states	Yes
Netplay	Not verified
Controller remapping	Yes
BIOS required	Yes
Deployment	Desktop, Mobile
Platforms	Windows, macOS, Linux, Android
Support	Docs
Built for	Solo, Small business (editorial estimate)
Pricing	Free plan
Website	jillybunch.com
Facts checked	21 Sep 2026

Alternatives to kat5200

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kat5200 vs the competition

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The editor score above is our own research. What this page doesn't have yet is a reader's view — what you used kat5200 for, what worked and what didn't. No stars are seeded and no review is paid for; an editor reads every one before it appears.

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Featured on iTechGuides

kat5200 is listed in our Atari Emulators directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

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Last updated 7 Oct 2026 · How we research and update