Flycast vs WashingtonDC

Flycast is a free emulator for Sega Dreamcast, Naomi, Naomi 2, and Atomiswave. Its Android listing says it runs most Dreamcast games, including Windows CE titles, and arcade games for Naomi, Naomi 2, Atomiswave, and System SP. Graphics options include OpenGL and Vulkan, high-definition and widescreen play, and custom high-definition texture packs. The Android listing specifies 10 save-state slots and names RetroAchievements, modem and LAN adapter emulation, and Power Smash online support in update notes. The project offers regular master builds, experimental nightly development builds, and versioned stable releases. The builds page describes master as relatively stable and cautions that other branches may be unstable, crash, or fail to run. Flycast is available for Android, Linux, macOS, and Windows, with controller support and online multiplayer listed. Game files are not included and must be owned by the user. The repository identifies the license as GPL-2.0.

washDC, formerly known as WashingtonDC, is a free, open-source SEGA Dreamcast emulator for Linux and Microsoft Windows. It is intended for playing classic Dreamcast games on a modern x86 PC and was built from scratch rather than based on another emulator. The README lists GDI, CHD, CDI, ELF, and raw BIN game image formats, and says BIOS and flash images are required to run the emulator. Controls include keyboard input and support for up to four gamepads. Remote GDB and the WashDbg debugger are listed as TCP debugging options. Wash Emulation describes itself as a one-person team and washDC as its only product to date. The project also publishes homebrew programs for examining Dreamcast behavior, including tests of PowerVR2 backface culling and memory mirroring. Its separate gdisofs tool mounts Dreamcast game images as read-only filesystems on Linux PCs. The emulator is licensed under GNU GPL version 3. The maker links to project updates, Discord, and an email contact.