Sandopolis review
A focused browser emulator for Sega 8- and 16-bit libraries.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Sandopolis is a free, open-source emulator for Sega Genesis/Mega Drive, Master System, Game Gear, and SG-1000 software. It is aimed at users who want a focused way to run Sega 8- and 16-bit ROMs through a browser or self-hosted installation. The WebAssembly frontend supports direct loading for BIN, MD, SMD, GEN, SMS, GG, SG, and ZIP files, while desktop binaries and source builds with Zig provide additional ways to run the project.
Its strongest point is system coverage within a narrow Sega focus. Sandopolis handles four systems and includes configurable keyboard, gamepad, and analog input mappings, rendering settings, persistent save-state slots, and capture tools for GIF, WAV, and BMP output. That combination makes it more than a basic ROM launcher for users who value input customization, progress snapshots, or media capture. The open-source license also suits users who want to inspect or build the emulator themselves.
The main trade-off is project maturity and scope. Sandopolis remains in early development, so compatibility and behavior may change between releases. It does not provide netplay or mobile coverage, which limits its fit for multiplayer sessions or phone-first use. Choose Sandopolis if browser access, self-hosting, Sega coverage, and open-source availability matter most. Users seeking broader platform coverage, mobile play, or online multiplayer should consider an emulator with those capabilities instead.
Sandopolis pros and cons
- Where it wins
- Emulates Genesis, Master System, Game Gear, and SG-1000
- Loads BIN, MD, SMD, GEN, SMS, GG, SG, and ZIP files
- Includes input mapping, save states, and GIF, WAV, and BMP capture
- Where it doesn't
- No netplay support
- No mobile coverage
- Early development means compatibility may change between releases
Sandopolis fact sheet, pricing and score →
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