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Head-to-head · Sega CD Emulators

Genesis Plus GX vs BlastEm

  • Updated Oct 2026
  • Both researched from official sources
  • 4 checks side by side
Higher score Genesis Plus GX #1 in Sega CD Emulators 9.4/10 Free plan Free plan✓ 3 of 4 features Try Genesis Plus GX
BlastEm #2 in Sega CD Emulators 9.2/10 Free plan Free plan✓ 0 of 4 features Visit BlastEm

Genesis Plus GX leads on 0 checks, BlastEm on 0, and 4 are even. Who comes out ahead on the 4 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreGenesis Plus GX · 9.4/10
  • Free planboth
  • Most featuresGenesis Plus GX · 3 of 4

Genesis Plus GX scores higher on our rubric for sega cd emulators: 9.4 against 9.2 out of 10; our editors rank them #1 and #2.

Genesis Plus GX is the better fit for free, feature-rich Sega CD emulation. BlastEm is the better fit for cross-platform users and debugging workflows.

  • Genesis Plus GX fits best

    Free, feature-rich Sega CD emulation

  • BlastEm fits best

    Cross-platform users and debugging workflows

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Side by side

Feature Genesis Plus GX 9.4/10 Visit ↗ BlastEm 9.2/10 Visit ↗
At a glance
Editor score 9.4 9.2
Ranking #1 in Sega CD Emulators #2 in Sega CD Emulators
Best for Free, feature-rich Sega CD emulation Cross-platform users and debugging workflows
Pricing model Free Free
Starting price Free plan Free plan
Free plan ✓ ✓
Free trial — —
Deployment Desktop Desktop
Platforms Windows Web, Windows, macOS, Linux
Support Docs Community, Email
Built for Solo, Small business Solo, Small business
Features Genesis Plus GX 3/4 · BlastEm 0/4
Save states ✓ (best) Not checked yet
CD audio support Not checked yet Not checked yet
Netplay ✓ (best) Not checked yet
Cheat support ✓ (best) Not checked yet
Specs
Supported platforms Not checked yet Not checked yet
BIOS requirement Not checked yet Not checked yet
License Not checked yet Not checked yet
Our review
Pros
  • Covers Genesis, Mega CD, Master System, Game Gear, and SG-1000
  • Includes save states, cheats, display filters, and hardware emulation
  • Works with RetroArch, BizHawk, and OpenEmu
  • Supports Sega CD plus a broad range of Sega systems
  • Runs on Windows, macOS, Linux, and the web
  • Deep debugger with scripting and conditional breakpoints
Cons
  • Sega PICO emulation is preliminary
  • Netplay is available through the libretro core
  • Free use is limited to non-commercial use under its license
  • Web version is described as experimental
  • Primary focus is the Genesis/Mega Drive
  • Debugging depth may exceed casual players' needs
Our verdict

Genesis Plus GX is an open-source emulator for Sega’s 8-bit and 16-bit systems, with particular value for Genesis/Mega Drive and Sega/Mega CD libraries. It also supports Master System, Game Gear, SG-1000, and preliminary Sega PICO…

Read the review →

BlastEm is a free, open-source emulator for Sega's classic 16-bit and 8-bit systems. Its primary target is the Genesis/Mega Drive, while documented support also covers Sega CD, 32X, Master System, Game Gear, SG-1000, SC-3000, Sega Pico,…

Read the review →
  1. Genesis Plus GXSega CD Emulators 9.4Free plan
  2. BlastEmSega CD Emulators 9.2Free plan

Strengths and trade-offs

  • Genesis Plus GX — where it wins

    • Covers Genesis, Mega CD, Master System, Game Gear, and SG-1000
    • Includes save states, cheats, display filters, and hardware emulation
    • Works with RetroArch, BizHawk, and OpenEmu

    Where it doesn't

    • Sega PICO emulation is preliminary
    • Netplay is available through the libretro core
    • Free use is limited to non-commercial use under its license

  • BlastEm — where it wins

    • Supports Sega CD plus a broad range of Sega systems
    • Runs on Windows, macOS, Linux, and the web
    • Deep debugger with scripting and conditional breakpoints

    Where it doesn't

    • Web version is described as experimental
    • Primary focus is the Genesis/Mega Drive
    • Debugging depth may exceed casual players' needs

More comparisons

All sega CD emulators comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update