Flycast vs Deecy

Flycast9.4Visit Deecy8.1Visit

Higher score Flycast #1 in Dreamcast Emulators 9.4/10 Free plan Free plan✓ 3 of 4 features Visit Flycast

vs

Deecy #3 in Dreamcast Emulators 8.1/10 Free plan Free plan✓ 3 of 4 features Visit Deecy

• Flycast fits best

  Broad Dreamcast and arcade emulation

• Deecy fits best

  Free Linux or Windows Dreamcast emulation

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Side by side

Feature	Flycast 9.4/10 Visit ↗	Deecy 8.1/10 Visit ↗
At a glance
Editor score	9.4	8.1
Ranking	#1 in Dreamcast Emulators	#3 in Dreamcast Emulators
Best for	Broad Dreamcast and arcade emulation	Free Linux or Windows Dreamcast emulation
Pricing model	Free	Free
Starting price	Free plan	Free plan
Free plan	✓	✓
Free trial	—	—
Deployment	Self-hosted, Desktop, Mobile	Desktop
Platforms	Windows, macOS, Linux, Android	Windows, Linux
Support	Community, Docs	Docs
Built for	Solo, Small business, Mid-market, Enterprise	Solo, Small business
Features Flycast 3/4 · Deecy 3/4
Controller support	✓	✓
Save states	✓	✓
Online multiplayer	✓ (best)	Not checked yet
Dreamcast BIOS required	—	✓ (best)
Specs
Supported platforms	Windows, macOS, Linux, Android	Windows, Linux
Graphics backends	Not checked yet	Not checked yet
Our review
Pros	Supports Dreamcast, Naomi, Naomi 2, Atomiswave, and System SP Runs on Windows, macOS, Linux, and Android Includes save states, networked play, and OpenGL and Vulkan rendering	Free and open source under the MIT license Loads GDI, CDI, CHD, and BIN disc images Includes controller setup, save states, rewind, fullscreen, and VMU support
Cons	Games are not included Users must provide legally obtained game files No AI features	Available builds are described as unstable Requires users to provide Dreamcast BIOS and flash dump files Supports Windows and Linux, with no listed builds for other platforms
Our verdict	Flycast is a free, open-source emulator from Flyinghead for Sega Dreamcast, Naomi, Naomi 2, Atomiswave, and System SP software. It is intended for users who want one application covering Dreamcast and several related arcade platforms, with… Read the review →	Deecy is an experimental Dreamcast emulator written in Zig for users who want a free, open-source option on Windows or Linux. It provides downloadable builds for both platforms and focuses on core emulator functions rather than a broader… Read the review →

Strengths and trade-offs

• Flycast — where it wins

  • Supports Dreamcast, Naomi, Naomi 2, Atomiswave, and System SP
  • Runs on Windows, macOS, Linux, and Android
  • Includes save states, networked play, and OpenGL and Vulkan rendering

  Where it doesn't

  • Games are not included
  • Users must provide legally obtained game files
  • No AI features

• Deecy — where it wins

  • Free and open source under the MIT license
  • Loads GDI, CDI, CHD, and BIN disc images
  • Includes controller setup, save states, rewind, fullscreen, and VMU support

  Where it doesn't

  • Available builds are described as unstable
  • Requires users to provide Dreamcast BIOS and flash dump files
  • Supports Windows and Linux, with no listed builds for other platforms

• Flycast9.4/10 · Free plan

  A broad, free emulator for Dreamcast and four related arcade platforms.

  Visit FlycastFull verdict →
• Deecy8.1/10 · Free plan

  A free, open-source Dreamcast emulator with practical playback and state features.

  Visit DeecyFull verdict →