Flycast vs nullDC 2.0.0

Flycast is a free emulator for Sega Dreamcast, Naomi, Naomi 2, and Atomiswave, derived from reicast. It runs on Android, Linux, macOS, and Windows, with releases available as stable tagged versions, master builds, and experimental nightly builds. Android users are directed to Google Play; Linux instructions cover Flatpak and Flathub, while macOS instructions use Homebrew. Windows documentation provides a bootstrap script for building from source. Xbox One and Series users can install a build through Xbox Device Portal. Flycast supports online play, with release notes describing modem-emulation improvements and fixes for online features in several games. Its DCNet service is a free dedicated VPN for Dreamcast games; 30 game servers were available when it was released. Physical Dreamcast controllers work with DreamConn+ and DreamPicoPort adapters. On Android, Google Auto Backup can back up VMU saves and non-volatile memory. The project lists GPL-2.0 as its license and says iOS support has been dropped.

nullDC 2.0.0 is a Sega Dreamcast emulator, with a browser option and downloadable builds for Windows, macOS, and Linux. The browser page provides a WASM embed where users can drop files to start the emulator. One startup option uses dc_boot.bin (2MB) and dc_flash.bin (128KB); the other is an .elf executable. The project describes its aim as accurate emulation. Its builds page lists v2.0.0-pre-388-g95a924b as the most recent build, dated 2025-11-10 08:17:38 UTC. Windows and macOS artifacts are listed for aarch64 and x86_64; Linux artifacts include aarch64, riscv64gc, and x86_64. The project is open source under the MIT license, which provides the software without warranty. The home page also lists older beta releases, including beta 1.6 from 2007, and a stereoscopy build from 2008. The historical beta 1 netplay server is listed as compatible only with beta 1. For help, the project directs users to its forum at ngemu.com.