Nuked-SMS
Nuked-SMS: A focused, open-source SMS emulator for studying accurately modeled US Model 1 hardware. Ranked #13 of 25 in Sega Master System Emulators by our editors (7.3/10); pricing: Free plan; best for researchers studying cycle-accurate SMS internals.
At a glance
- Editor score7.3 / 10
- PricingFree plan
- Best forResearchers studying cycle-accurate SMS internals
- Free planYes
- Paid fromFree
- Facts checked21 Sep 2026
Where it wins
- Models the Zilog Z80, YM2602B VDP, 315-5216 I/O, and YM2413
- Targets the US Sega Master System Model 1 specifically
- GPL-2.0 source code supports inspection and modification
Where it doesn't
- Work-in-progress status may limit completeness
- Focuses on US SMS Model 1 rather than SMS2 or Game Gear VDP extensions
- Distributed as source code rather than a packaged emulator
Our verdict on Nuked-SMS
Nuked-SMS is a work-in-progress Sega Master System emulator centered on cycle-accurate hardware emulation. It is aimed at researchers and developers who want to examine the internal behavior of the US Sega Master System Model 1 through published source code. The project models the Zilog Z80 CPU, Yamaha YM2602B video display processor, Sega 315-5216 I/O chip, and Yamaha YM2413 sound hardware, giving it a narrow and technically defined scope rather than a broad set of user-facing emulator features.
Its main strength is the depth of its hardware target. The published project description identifies separate emulation work for the CPU, video, I/O, and sound components, while the US Master System Model 1 target keeps the project focused. GPL-2.0 licensing makes the source available for inspection and modification. That combination suits readers evaluating console internals, comparing component behavior, or studying how a specific SMS configuration can be represented in software.
Nuked-SMS is less suitable for users seeking a general-purpose emulator experience. SMS2 and Game Gear VDP extensions are outside its supported target, and the project is distributed as source code rather than a packaged binary. Its work-in-progress status also matters for buyers choosing between a research-oriented implementation and a broader everyday emulator. Pick Nuked-SMS when cycle-accurate US Model 1 behavior and readable source are the priority; choose an alternative when wider hardware coverage or a ready-to-run package matters more.
Your product? Our editors can test Nuked-SMS in depth and publish a review, labelled as paid · from $149/mo →
Nuked-SMS pricing
Nuked-SMS fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Supported platforms | Not verified |
| Source available | Yes |
| Built-in debugger | Not verified |
| Netplay support | Not verified |
| Cheat support | Not verified |
| BIOS required | Not verified |
| Pricing | Free plan |
| Website | github.com |
| Facts checked | 21 Sep 2026 |
Alternatives to Nuked-SMS
- GearsystemA free, broad-platform emulator with debugging, cheats, rewind and no BIOS requirement.9.4
- MasterGearA mature Sega emulator with NetPlay, debugging, cheats, and broad 8-bit console support.9.0
- EmuliciousA free, developer-focused emulator for Master System work and multi-system testing.8.8
See all Nuked-SMS alternatives →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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