Flycast vs Nitrocast

Flycast Dojo is a free, open-source fork of the Flycast emulator for Sega Dreamcast, Naomi, Naomi 2 and Atomiswave. Its focus is netplay and replay, with training tools for supported games. Players can connect using Match Codes, direct IP connections or virtual LANs such as ZeroTier or Radmin. Match Codes use an internet relay to help start peer-to-peer sessions through firewalls without an account or extra software. Netplay sessions can be recorded and played back, or transmitted to a replay server or listening spectator. Training Mode supports RetroArch .cht cheats, savestates, and recording and playing back inputs. Players can compare ROM MD5 checksums, while successful peer-to-peer play requires matching ROM and BIOS files. The project is bundled with Fightcade and Arkadyzja. It is listed for Android, Linux, macOS and Windows, though the official site links downloads for Windows, Linux and Mac. The documentation notes that Match Codes may have problems on some cloud gaming services or corporate networks.

Nitrocast is a free Linux Dreamcast emulator aimed primarily at homebrew development. It began as a fork of lxdream and later became a separate project. The interface uses GTK3, and the build system is Meson. Nitrocast retains OpenGL and GTK video drivers. Developer-oriented features include mounting folders at /pc and exiting with .elf return codes. The project README describes SH4 emulation as very accurate while noting that PVR emulation is lacking. A runtime flag, --ram-size, accepts 16 or 32 to emulate the Dreamcast 32MB RAM modification. Build instructions cover cloning the GitLab repository, configuring and compiling with Meson, and running the nitrocast executable. The project was created on April 26, 2019. Its project pages provide no pricing plans beyond the listed free status, and no integrations, support terms, or security and compliance claims. It is available for Linux; no other platform is listed.