Best SMS Plus GX Alternatives in 2026
The top SMS Plus GX alternatives are Gearsystem, MasterGear and Emulicious: 15 sega master system emulators our editors would look at instead of SMS Plus GX, in our ranking order.
SMS Plus GX: A free SMS and Game Gear core with flexible saves, controls, cheats, and video options. Where it falls short: requires a compatible libretro frontend such as RetroArch.
Switching from SMS Plus GX? For most sega master system emulators buyers the best SMS Plus GX alternative is Gearsystem, built for most users wanting a full-featured SMS emulator.
Why People Look for an SMS Plus GX Alternative
- Requires a compatible libretro frontend such as RetroArch
- Netplay is not supported
- ColecoVision support is experimental and requires a separate BIOS
- No netplay support — 4 of the alternatives below have it
- No bIOS required — 2 of the alternatives below have it
Quick Picks by What You Need
- Best overallGearsystem9.4
Most users wanting a full-featured SMS emulator
Visit Gearsystem - Best free optionGearsystem9.4
Has a free plan
Visit Gearsystem - Best for netplay supportMasterGear9.0
Netplay support (SMS Plus GX: no)
Visit MasterGear
All 15 SMS Plus GX Alternatives, Ranked
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.
Sponsored alternatives to SMS Plus GX Sponsored alternative
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Best forMost users wanting a full-featured SMS emulator
- Better than SMS Plus GX:
- Editor score 9.4 vs 7.9
A free, broad-platform emulator with debugging, cheats, rewind and no BIOS requirement.
- Built-in debugger
- Cheat support
- Source available
9.4/10★★★★★Visit Gearsystem -
Best forUsers prioritizing mature SMS features and NetPlay
- Better than SMS Plus GX:
- Netplay support
- Editor score 9.0 vs 7.9
A mature Sega emulator with NetPlay, debugging, cheats, and broad 8-bit console support.
- Built-in debugger
- Netplay support
- Cheat support
9.0/10★★★★☆Visit MasterGear -
Best forDevelopers and testers needing SMS debugging
- Better than SMS Plus GX:
- Editor score 8.8 vs 7.9
A free, developer-focused emulator for Master System work and multi-system testing.
8.8/10★★★★☆Visit Emulicious -
Best forHardware-accurate desktop SMS emulation
- Better than SMS Plus GX:
- Editor score 8.6 vs 7.9
A focused desktop emulator for accurate Sega Master System and related 8-bit play.
- Source available
8.6/10★★★★☆Visit vibe-sms -
Best forDedicated SMS users wanting scripting tools
- Better than SMS Plus GX:
- Editor score 8.4 vs 7.9
A free, focused SMS emulator with scripting, movie tools, and memory features.
- Source available
8.4/10★★★★☆Visit Dega -
Best forRetroArch users wanting broad Sega emulation
- Better than SMS Plus GX:
- Netplay support
- Editor score 8.2 vs 7.9
A broad Sega emulator with Master System support, save states, cheats, filters, and frontend integrations.
- Netplay support
- Cheat support
8.2/10★★★★☆Try Genesis Plus GX -
Best forTAS and multiplayer-focused desktop users
- Better than SMS Plus GX:
- Netplay support
- Editor score 8.0 vs 7.9
A strong desktop choice for Sega Master System TAS work and rollback multiplayer.
- Netplay support
8.0/10★★★★☆Visit Nexen -
Best forBrowser users wanting multi-Sega coverage
A free, flexible browser emulator for broad Sega system coverage.
7.7/10★★★★☆Visit Sandopolis -
Best forSelf-hosted users wanting lightweight web emulation
A free, source-available emulator with lightweight web and self-hosted build options.
- Source available
7.6/10★★★★☆Visit TotalSMS -
Best forSimple cross-platform Master System emulation
A focused free option for Master System ROMs, snapshots, and classic display and sound support.
- Source available
7.5/10★★★★☆Visit DSP Emulator -
Best forBrowser users needing built-in SMS debugging
A focused, free web emulator for Sega Master System play and debugging.
- Built-in debugger
- Source available
7.4/10★★★★☆Visit Miracle -
Best forResearchers studying cycle-accurate SMS internals
A focused, open-source SMS emulator for studying accurately modeled US Model 1 hardware.
- Source available
7.3/10★★★★☆View Nuked-SMS -
Best forUsers wanting a minimal SMS emulator
A focused SMS emulator with core rendering, scaling, fullscreen, and keyboard controls.
- Source available
7.2/10★★★★☆Visit GitHub -
Best forDesktop users wanting polished multi-system emulation
- Better than SMS Plus GX:
- BIOS required
A feature-rich desktop emulator for Sega Master System and 33 other supported systems.
- BIOS required
7.0/10★★★★☆Visit ares -
Best forDesktop users wanting netplay and rewind
- Better than SMS Plus GX:
- Netplay support
- BIOS required
A free, open-source desktop emulator with rewind, shaders, save states, and netplay.
- BIOS required
- Netplay support
6.9/10★★★☆☆Visit Mednafen
SMS Plus GX Alternatives: Common Questions
What is the best alternative to SMS Plus GX?
Gearsystem: #1 in our Sega Master System Emulators ranking, with an editor score of 9.4 out of 10. A free, broad-platform emulator with debugging, cheats, rewind and no BIOS requirement.
Is there a free alternative to SMS Plus GX?
Yes. Gearsystem, MasterGear, Emulicious, vibe-sms and Dega have a free plan or a free tier (15 of the 15 alternatives on this page).
Why do people look for SMS Plus GX alternatives?
Requires a compatible libretro frontend such as RetroArch; Netplay is not supported; ColecoVision support is experimental and requires a separate BIOS.
How do I switch from SMS Plus GX?
Export your data from SMS Plus GX (most tools have an export in their settings). Sign up for the alternative; start on its free plan or trial if it has one. Import your export and set up the integrations your team relies on. Run both side by side for a short while, then cancel SMS Plus GX.
How to Switch from SMS Plus GX
- Export your data from SMS Plus GX (most tools have an export in their settings).
- Sign up for the alternative; start on its free plan or trial if it has one.
- Import your export and set up the integrations your team relies on.
- Run both side by side for a short while, then cancel SMS Plus GX.
SMS Plus GX vs Each Alternative
| # | Tool | Free plan | Paid from | Supported platforms | Source available | Score |
|---|---|---|---|---|---|---|
| 8 | SMS Plus GX | Yes | Free | Android, Linux | Yes | 7.9 |
| 1 | Gearsystem | Yes | Free | Windows, macOS, Linux, BSD, RetroArch, Android, iOS, tvOS, webOS, Emscripten and other Libretro targets | Yes | 9.4 |
| 2 | MasterGear | Yes | Windows, Linux, Android | No | 9.0 | |
| 3 | Emulicious | Yes | Free | 8.8 | ||
| 4 | vibe-sms | Yes | Free | Linux, Windows, macOS | Yes | 8.6 |
| 5 | Dega | Yes | Free | Windows, *NIX | Yes | 8.4 |
| 6 | Genesis Plus GX | Yes | Free | Windows; GameCube; Wii; RetroArch-based platforms | 8.2 | |
| 7 | Nexen | Free | 8.0 | |||
| 8 | Sandopolis | Yes | Free | 7.7 | ||
| 9 | TotalSMS | Yes | Free | Web (Emscripten); Nintendo 3DS; PSP; PS Vita | Yes | 7.6 |
| 10 | DSP Emulator | Yes | Free | Windows, Linux, macOS | Yes | 7.5 |
| 11 | Miracle | Yes | Free | web | Yes | 7.4 |
| 12 | Nuked-SMS | Yes | Free | Yes | 7.3 | |
| 13 | SMS | Yes | Free | Yes | 7.2 | |
| 14 | ares | Yes | Free | 7.0 | ||
| 15 | Mednafen | Yes | Free | 6.9 |
Head-to-Head
- SMS Plus GX vs Gearsystem
- SMS Plus GX vs MasterGear
- SMS Plus GX vs Emulicious
- SMS Plus GX vs vibe-sms
- SMS Plus GX vs Dega
- SMS Plus GX vs Genesis Plus GX
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update