TotalSMS review
A free, source-available emulator with lightweight web and self-hosted build options.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
TotalSMS is an open-source emulator for Sega Master System, Game Gear, and SG-1000 software. It is aimed at users who want a free emulator that can run through a hosted web build or be compiled for self-hosted use. The project includes ROM loading from ZIP files, save states, load states, and an SDL frontend. Its source is distributed under the MIT License, making it suitable for users who value inspectable code and flexible build options.
The build system is a central part of TotalSMS. Its CMake configuration includes an Emscripten web build preset, alongside presets for Nintendo 3DS, PSP, and PS Vita. A Libretro core build option is also available, extending the ways the emulator can fit into supported frontend or platform workflows. These targets give the project broader platform coverage than a single desktop-oriented build, while the hosted web build provides a direct browser-based route.
TotalSMS is a focused choice for Sega Master System, Game Gear, and SG-1000 emulation rather than a broad multi-system emulator. The published project description labels it a work in progress, so users seeking a mature, wide-ranging emulator may prefer an alternative. Choose TotalSMS if its supported systems, ZIP loading, state controls, web build, or self-hosted approach match your needs; look elsewhere if you require systems beyond its stated scope or want a project that is not described as work in progress.
TotalSMS pros and cons
- Where it wins
- Supports Sega Master System, Game Gear, and SG-1000 emulation
- Loads ROMs from ZIP files and supports save and load states
- Offers web, Nintendo 3DS, PSP, and PS Vita build presets
- Where it doesn't
- The project is described as a work in progress
- Build configuration is centered on CMake and frontend targets
- Its scope is limited to Sega Master System, Game Gear, and SG-1000
TotalSMS fact sheet, pricing and score →
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