Moa
Moa: A developer-focused Genesis emulator with strong inspection tools and incomplete gameplay coverage. Ranked #18 of 28 in Sega Genesis Emulators by our editors (7.1/10); pricing: Free plan; best for developers studying Genesis internals.
At a glance
- Editor score7.1 / 10
- PricingFree plan
- Best forDevelopers studying Genesis internals
- Free planYes
- Paid fromFree
- Founded2021
- Facts checked20 Sep 2026
Where it wins
- Built-in debugger with stepping, breakpoints, registers, and memory inspection
- Emulates both 68000 and Z80 processors
- Free, open-source project with Genesis and other system simulations
Where it doesn't
- Some games fail to render or accept input
- Audio is not implemented
- Cartridge expansion memory is unsupported
Our verdict on Moa
Moa is an open-source Rust emulator and simulator for systems built around 68000 and Z80 processors. It supports Sega Genesis/Mega Drive ROM emulation alongside TRS-80 Model I and Computie system simulation, with partial Macintosh 512k support. Genesis ROM files are accepted through a command-line frontend. The project is best suited to developers and technically minded users studying Genesis internals rather than players seeking broad compatibility or a complete console recreation.
Its strongest feature is the built-in debugger. Instruction stepping, breakpoints, register display, and memory inspection give users direct visibility into program execution and system state. Moa also includes 68000 and Z80 CPU emulation, frontend window scaling, threaded emulation mode, and gameplay speed adjustment. These capabilities make it useful for examining how Genesis software interacts with its processors and timing, while its additional system simulations support a wider emulation and experimentation focus.
Moa remains an incomplete Genesis implementation. Some games fail to render or accept input, cartridge expansion memory is unsupported, and audio is not implemented. The published project description also does not establish save states, netplay, cheats, or shaders as available capabilities. Choose Moa for source-oriented exploration, processor-level inspection, and experimentation across supported systems. Users who primarily want dependable play across a broad game library, complete audiovisual support, or multiplayer features should consider an emulator with those functions explicitly provided.
Your product? Our editors can test Moa in depth and publish a review, labelled as paid · from $149/mo →
Moa pricing
Moa fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Supported platforms | Not verified |
| System scope | Multi_console |
| Save states | Not verified |
| Netplay | Not verified |
| Cheat support | Not verified |
| Shader support | Not verified |
| License | Open_source |
| Deployment | Desktop |
| Built for | Solo, Small business (editorial estimate) |
| Pricing | Free plan |
| Website | github.com |
| Facts checked | 20 Sep 2026 |
Alternatives to Moa
- RetroArchA free, open-source frontend with broad platform support and deep emulator controls.9.4
- Genesis Plus GXA broad Sega emulator with save states, hardware emulation, cheats, filters, and netplay.9.2
- MD.emuA feature-rich Sega emulator with saves, cheats, CD images, archives, and controller support.8.9
Also Ranked In
Moa is ranked in 2 of our directories.
Used Moa? Be the first to review it
The editor score above is our own research. What this page doesn't have yet is a reader's view — what you used Moa 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.
Write a reviewTwo minutes · verified accounts only · read by an editor before it appears
Featured on iTechGuides
Moa is listed in our Sega Genesis Emulators directory. Add the badge to your site — it links back to this page.
<a href="https://www.itechguides.com/products/moa/"><img src="https://www.itechguides.com/best/badge/moa.svg" alt="Featured on iTechGuides" width="230" height="46"></a>
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.
Last updated · How we research and update