PCSX-Reloaded based on PCSX
History
Development for the emulator started  in July 20, 1999, The emulator was first released for the PC on August 31, 2000. Official development ceased on September 17, 2003, and development shifted to the new PlayStation 2 emulator, PCSX2.
PCSX-df was created in 2006 and added new features, a new GTK-based interface, AMD64 support, and corrected some bugs, but was developed mainly with only Linux compatibility in mind. Version 1.10 was released on March 29, 2009.
PCSX-Reloaded is a new project created in mid-2009, which is based on the work of the PCSX-df branch, completely independent, and works on bug fixes while maintaining Windows and OS X compatibility alongside Linux. PCSX-df and PCSX-Reloaded coexisted for a while, with PCSX-df merging changes of PCSX-Reloaded back into df.
In 2019, another fork PCSX-Redux was started. It can be seen as the latest iteration of the original PCSX codebase. This fork has the goal of a complete redesign along more up to date code standards. Everything should be implemented on top of SDL/OpenGL3+/ImGui. Additionally, the plugin system will be replaced through a single monolithic codebase that handles all aspects of the PlayStation emulation. In this context, PCSX-Redux shares several approaches with the PlayStation 2 emulation successor project PCSX2