Nugget
'Nugget' is the nickname for the method of compiling PSX executables using a modern GCC (with docker) and optionally the converted Psy-Q libraries.
https://github.com/pcsx-redux/nugget/ - The root of the Nugget repository.
https://github.com/ABelliqueux/nolibgs_hello_worlds - PsyQ - How to use the converted PSYQ libs in various examples, without using PsyQ's libgs functions.
https://github.com/NDR008/VSCodePSX - Get coding for PSX on Win 10 64bit with VS Code and GDB
https://github.com/JonathanDotCel/helloworld_and_flappycredits - No PSYQ - A hello world GPU/Pads/Sprite example with no SDK.
https://github.com/JaberwockySeamonstah/PSXOverlayExample - Using Overlays without the PSY-Q Toolchain
https://github.com/pcsx-redux/nugget/tree/main/psyqo - Use modern C++ directly within nugget.
Documentation
https://psx-spx.consoledev.net/ - This is a conversion/edition of Martin "nocash" Korth's Playstation specs document originally hosted at https://problemkaputt.de/psx-spx.htm
http://psx.schnappy.xyz/starting Everything to get you started in PSX dev on one page
https://schnappy.xyz/nolibgs/ - Wiki that documents data conversion and usage for PSX formats.
MIPS Instruction Set - The MIPS instruction set for the PlayStation 1 R3000A CPU.
Padua's Playstation 1 Resource - A great wealth of technical info on the Playstation 1; very Assembly language heavy.
"Introduction to PlayStation research, presented by Dr.Hell"
Dr.Hell's PocketStation Documentation
Programming & ressources
https://github.com/PeterLemon/PSX - PlayStation Bare Metal Mips Assembly Programming
http://onorisoft.free.fr/psx/psx.htm#Tutorials - Orionsoft's PSX Programming Tutorial Series
http://hitmen.c02.at/html/psx.html - Hitman's Playstation Archive : Great info & resources (last updated 2013) regarding programming on the Playstation 1.
https://jum.pdroms.de/PSX/psxdevstart.html - James' PSX Getting Started Tutorial: Great info (last updated 2013) regarding programming on the Playstation 1.
https://archive.org/details/webyaroze.7z - Net Yaroze Website Backups : Includes a bunch of official documentation, various tools & updates for pc/mac, as well as tutorials & samples for developing for the PS1 and Net Yaroze.
https://github.com/MatthewJohn/JurgHurg-PS1-tutorial - PS1 Homebrew Tutorial Code examples from Jurg Hurg Source from videos.
https://github.com/giulioz/PSX-Example - Example for building programs for Sony Playstation 1 (PSX), using Docker.
https://github.com/Bigbudddo/psx-pong - A repo for building and learning how to create games for the Playstation 1 (PSX). It will be a simple game of Pong.
https://github.com/williamblair/PSX_App - Class for making Playstation 1 apps using PSYQ
https://www.retroreversing.com/ps1/ - PSX section of retroreversing.com
Other
PSXDEV - The Ultimate Resource for anything related to PS1 Development (Docs, Software, Tools, etc.)
https://psx0.wordpress.com/ - DanHans42 personal PSX Blog
ObscureGamer's Section on Sony Playstation 1 Programming & Tool-sets
https://psx.amidog.se/doku.php - PSX wiki (last update 2016)
Reverse & engineering
Games
https://gitlab.com/megamanlegends - Mega Man Legends 1 and 2 various tools (asset extraction, save state browsing etc.).
https://tetracorp.github.io/tokimeki-memorial/ - Tokimeki Memorial reverse-engineering articles. Contains a lot of useful info on how to get started with PSX reverse engineering.
https://github.com/AliveTeam/alive_reversing - Re-implementation of Oddworld: Abe's Exoddus and Oddworld: Abe's Oddysee.
https://github.com/ChrisNonyminus/mml1 - WIP Decompilation of Megaman Legends (aka Rockman Dash) for the PlayStation 1.
https://github.com/Erick194/PSXDOOM-RE - Doom-RE.
https://github.com/FedericoMilesi/soul-re - Reverse-engineering project of the 1999 PlayStation game Legacy of Kain: Soul Reaver, from MIPS to C.
https://github.com/FoxdieTeam/mgs_reversing - Metal Gear Solid PSX reimpl repo.
https://github.com/Gh0stBlade/KAIN2 - Legacy of Kain: Soul Reaver Decompile.
https://github.com/OpenDriver2/REDRIVER2 - Driver 2 Playstation game reverse engineering effort.
https://github.com/OpenNFS/NFSHSX - Need for Speed: High Stakes Disassembly translated to C source code.
https://github.com/TOMB5/TOMB5 - Tomb Raider: Chronicles Disassembly translated to C source code.
https://github.com/Xeeynamo/sotn-decomp - Decompilation of Castlevania: Symphony of the Night (PSX+Saturn).
https://github.com/open-ribbon/open-ribbon - vib-ribbon decompilation (PAL version).
Game tools, documentation etc.
https://github.com/rickomax/psxprev - PSXPREV - Playstation (PSX) Files Previewer/Extractor. Supports many model, texture and animation formats from various games.
https://github.com/CTR-tools/CTR-tools - Crash Team Racing (PS1) tools.
https://github.com/AdrianoDiDio/Medal-Of-Honor-PSX-File-Viewer - A set of tools to open and view files from the PSX games Medal Of Honor And Medal Of Honor:Underground.
https://github.com/IvanDSM/KingsFieldRE - King's Field (II) Reverse Engineering Tools and Documentation.
Hardware, tools
https://github.com/JaCzekanski/ps1-tests - Collection of PlayStation 1 tests for emulator development
https://github.com/ogamespec/psxdev - Sony PlayStation chips reverse engineering.
https://github.com/Laxer3a/MDEC - Attempt to verilog Implementation of Playstation 1 (PSX) chips.
https://github.com/pgate1/PlayStation_on_FPGA - Playstation on an FPGA
https://github.com/emvivre/Sony-PS1-executable-disassembler - Simple disassembler of Sony Playstation executable (MIPS R3000A instruction set).
https://github.com/Happy-Ferret/sym - Parse Playstation 1 symbol files (*.SYM).
https://github.com/infval/SlowR3KA - PlayStation 1 Disassembler (MIPS R3000A)
https://github.com/MonstersGoBoom/mips32 - mips32 disassembler and maybe emulator at some point
https://macrox.gshi.org/The%20Hacking%20Text.htm - The secrets of professional gameshark hacking
https://github.com/lab313ru/ghidra_psx_ldr - Sony Playstation PSX executables loader for GHIDRA
Emulators
PCSX-Redux - PCSX-Redux is the latest iteration of PCSX, the popular open source PlayStation emulator, still supported today, and mainly focused on development and reverse engineering. Works on Windows, Linux, and MacOS.
Duckstation - Duckstation is a fast, accurate, and easy-to-use PlayStation emulator for Windows, Linux, MacOS, and Android.
Mednafen - Mednafen is a cross-platform, multi-system emulator with PlayStation support.
https://github.com/tetious/pcsxr - PCSX-Reloaded is a PlayStation Emulator based on PCSX-df 1.9, with support for Windows, GNU/Linux, and Mac OS X.
https://github.com/joroOnLinux/pcsxr-1.9.92-Optimized - pcsxr-optimized
https://github.com/briaguya/gpuPeopsOpenGL-camera - PSX Open GL Graphics plugin with camera movement
https://github.com/myst6re/highly_experimental - PSX Emulator made to emulate the SPU
https://github.com/thentenaar/psx-gs - Gameshark Plugin for ePSXe 1.6-1.9
http://problemkaputt.de/psx.htm - nocash Playstation PSone emulator by martin korth
Sdk, toolchains & libraries
https://marketplace.visualstudio.com/items?itemName=grumpycoders.psx-dev - A Visual Studio Code extension to help with the installation of PlayStation 1 toolchains, and some project templates.
https://ps1.consoledev.net/nugget/ - 'Nugget' is the nickname for the method of compiling PSX executables using a modern GCC.
https://github.com/Lameguy64/PSn00bSDK - The most powerful open source SDK for the PS1 (as far as open source PS1 SDKs go). Not recommended for beginner use.
https://github.com/ChenThread/candyk-psx - CandyK-PSX: A candy shop of tools and libraries for PlayStation development.
https://github.com/ChrisRx/psxsdk - psxsdk is a collection of tools and libraries for Playstation 1 development
https://github.com/pcsx-redux/nugget/tree/main/psyqo - PSYQo is a modern C++ library to develop on the PlayStation 1.
Exploits & softmods
https://github.com/brad-lin/FreePSXBoot - Load arbitrary code on the PSX using only a memory card
https://github.com/JonathanDotCel/unirom8_bootdisc_and_firmware_for_ps1 - Custom Xplorer/Action Replay firmware, bootdisc, import player (see NOTPSXserial)
https://github.com/socram8888/tonyhax - Software backup loader exploit using game specific savegames
Hardware, mod & adapters
https://github.com/x-station/xstation-releases - Optical Disk Emulator; Replace the optical disk with a sd-card reader
https://www.black-dog.tech/ps1digital.html - PS1 Digital - Add HDMI video output to the PlayStation
https://shmups.system11.org/viewtopic.php?p=1341006#p1341006 PU-22 (SCPH-750x) csync mod
http://mgarcia.org/Blog/2019-08-24-PSONE-Serial - Adding SIO to a PSone (SCPH-102)
https://github.com/c0pperdragon/PS1YPbPrAdapter - Sony Playstation YPbPr Adapter
https://github.com/alekexe/Pandora-PS1-Mod - Pandora, an open source ESP8266 modchip for the Sony Playstation 1
https://github.com/kalymos/PsNee - PsNee, an open source stealth modchip for the Sony Playstation 1
https://github.com/ColdHeat/PsNeePy - A Playstation 1 Modchip written in Python
https://github.com/grumpycoders/pcsx-redux/wiki/PIO-port-replacement - PIO port replacement
https://quade.co/ps1-modchip-guide/ - PlayStation 1 modchip installation guides
Misc, tools & other
Misc tools other
Disc Utilities
CD-Tool - Read/write sectors from/to an ISO, read information about an ISO, extract/insert files, as well as create or apply patches.
ISODump - PlayStation ISO Content Extraction Tool, by LameGuy64.
MKPSXISO - An ISO Image Maker made specifically for PlayStation Homebrew Development, by LameGuy64.
PSXImager - Tools for dumping and mastering PlayStation 1 ("PSX") CD-ROM images
Controller / Memory Card
ddread - Read PS1 or N64 memory cards using a dexdrive.
MemCARDuinoPlus - PS1 Memory Card Dumper With Arduino
PadTest - Gamepad Test application for Playstation 1
PlayStation 1 Reset Mod - PlayStation 1 Controller Combo Reset mod.
PS1CardLink - PlayStation 1 Memory Card reader/data transfer software
psx_mc_cli - Crossplatform cli utilities for working with PSX memory card files
psxmcr - dump data from a psx save file (raw or mcs)
psxmemcardmgr - PSX Memory Card Manager
PXfinder - A tool for Playstation 1 to retrieve screen coordinates using a crosshair
Misc
https://github.com/JonathanDotCel/NOTPSXSerial - Serial transfer suite for Playstation 1 / Unirom
PSn00b-Debugger - An Open source debugging utility for the Original PlayStation, by LameGuy64.
LiteLoad - A fairly light weight serial loader for the PlayStation, by LameGuy64
Mcomms - Serial uploader, monitor and SioFS host for PlayStation homebrew development, by LameGuy64.
SMX Tool - PlayStation RSD and SMX model data editing tool, by LameGuy64.
Siofs-PSX - SioFS client library for accessing files from a PC host on the Sony PlayStation, by LameGuy64.
PSX Blender RSD Plugin - A Blender Plug-in for Exporting Models in PlayStation SDK RSD Format, by LameGuy64.
Img2TIM - An Image to PlayStation TIM File Converter, by LameGuy64.
PSXNet - A simple library and client program to get the original PlayStation to connect to the internet, by LameGuy64.
PSXDev-VRAM Viewer - Playstation 1 Development - VRAM viewer for Orion_'s PsxLib, by David Asselineau.
https://github.com/danhans42/nxflash - NXFLASH Xplorer/Xplorer/AR/GS Flasher for Sony PlayStation
https://github.com/danhans42/sioload - Serial EXE Loader for Sony PlayStation
https://github.com/filipalac/240pTestSuite-PS1 - A homebrew video suite for playstation 1
https://github.com/ArthCarvalho/img2tim - (Palette preservation, proper 4 bit support that works with most modern software such as Aseprite and others that can't export 4bit bmps)
https://github.com/romhack/PsxVram-SDL - PSX VRAM Viewer
https://github.com/Lameguy64/psxnet - A simple library and client program to get the original PlayStation to connect to the internet.
https://github.com/XaviDCR92/OpenSend - PSX application to upload PSX-EXE dinamically.
https://github.com/gwald/Yarexe - converts Net Yaroze ecoff and siocon's script to a psx.exe
https://github.com/paulsapps/ukcom - A PSX USB comms link
https://github.com/dezgeg/VdfViewer - PSX VDF (Vertex Difference Format) animation viewer
https://github.com/dx4m/x-flash-psx-toolset - X-Flash Toolset to check, generate, pack and unpack a ROMFILE.DAT for the X-Flash eeprom flashing software.
https://github.com/CodeAsm/PS1Linux - Linux for the original sony playstation one.
https://github.com/ChenThread/fromage - PlayStation 1 voxel engine
https://github.com/loveemu/seq2mid - Playstation 1 SEQ to MIDI converter, and its variants
https://github.com/ColdSauce/Taco-Browser - Internet Browser for the Playstation 1
https://github.com/ShendoXT/biosdumper - PlayStation 1 bios dumping tool
https://github.com/ArthCarvalho/PSX-LZ77 - An assembly optimized LZ77 decompressor for the PlayStation 1.
https://github.com/XaviDCR92/rspsxserial - A command line application which enables serial communications against a PlayStation 1
https://github.com/ABelliqueux/blender_io_export_psx_mesh - Blender <=2.79b plugin to export meshes in a scene to a custom .c file
https://github.com/gmarkall/psx-toolchain - PSX toolchain building scripts
https://github.com/YusufCelik/newroze - A PSX Debugger with a GDB server
https://github.com/Joy-Division/tools-mgs - Tools for working with files from Metal Gear Solid
https://github.com/CTR-tools/CTR-tools - a C# framework and a set of tools to parse files found in the original kart racing game by Naughty Dog.
https://github.com/dezgeg/crash-bandicoot-password-cracking - Reverse engineering the Crash Bandicoot password generation algorithm
https://github.com/cbhacks/CrashEdit - Unofficial Crash Bandicoot 1/2/3 Level Editor
Retail, source & code
https://github.com/philosophofee/SBSPSS - The source code repository for the PlayStation 1 game, SpongeBob SquarePants: SuperSponge
https://github.com/dizzy2003/MuckyFoot-UrbanChaos/tree/master/fallen/PSXENG - MuckyFoot's 1996 Urban Chaos PC, PSX and maybe DC sources
https://archive.org/details/warcraftIIsourcecodePSX - Blizzard's 1997 game Warcraft II PSX source code
https://archive.org/details/ReVoltXboxAndPCSourceCode - Acclaim's Re-Volt source code, PC/Xbox version but some PSX files remain in the archive
https://tcrf.net/360:_Three_Sixty - Cryo Interactive's 360: Three sixty sources as found on the retail CD
https://archive.org/download/Redump.orgSonyPlayStation-PAL-C/Chill%20%28Europe%29%20%28En%2CFr%2CDe%2CEs%2CIt%29.zip - Silicon Dreams studio's Chill sources are on the retail CD, in bags/cdfiller.dat which is really a zip file.
https://github.com/RetailGameSourceCode/BattleKonchuuden - Battle Konchuuden's sources as found on the retail cd
https://github.com/RetailGameSourceCode/UltimateMortalKombat3 - Ultimate Mortal Kombat 3 's incomplete source code
http://www.psxdev.net/forum/viewtopic.php?f=41&t=470 - Beatmania APPEND 5thMIX - 1999.11.25 Psy-Q Source Code
https://archive.org/details/acclaim_discs - Acclaim's quagmire engine sources and assets
https://archive.org/details/Various-Mortal-Kombat-3-Source-Code-Collection - Various Mortal Kombat 3 Source Code Collections
Source, code & examples
https://github.com/XaviDCR92/Pinballoid - Open-source Sony PlayStation 1 (PSX) video game
https://github.com/apiraino/psx_tapper - A Tapper clone for Playstation 1.
https://github.com/electrobs/TEST-PSX-GLFW-Moving_Square - Test program to compile a simple application on Linux and the PlayStation (original)
https://github.com/ProFiLeR4100/psx-flappy-bird - Flappy Bird for the PS1
https://github.com/emvivre/3D-Point-Cloud-PSX-Demo - This is a PSX demo for the PSXDEV Codeblast '14 competition.
https://github.com/fabiopallini/ps1-graphics-demo - PlayStation 1 3D graphics Demo
https://github.com/EvelynRiales/Danger-Force-Psyq - Danger force written in C for classic consoles using the official Psyq SDK
https://github.com/jmiller656/PS1-Experimentation - Making Playstation games using psyq sdk
https://github.com/fanzyflani/ld33 - Frametime, a PS1 game for the LD33 Jam category
https://github.com/julian-goldsmith/ps1 - Old code for the PlayStation.
https://github.com/dominictoms/leek-quest-ps1 - sprite based ps1 game
https://github.com/fanzyflani/mld62 - Currently unnamed PS1 game for MiniLD62.
https://github.com/MatthewJohn/PS1_Pong - Another PONG Clone
https://github.com/OfficialMoonlit/ButtonMasher - Basic reaction time game for PS1
https://github.com/OfficialMoonlit/RPS-PS1-v1 - Rock Paper Scissors for PS1: Text Version
https://github.com/scnipper/PS1Games - source for WIP game creation (tic tac toe example)
https://github.com/sleepingburrito/QuadrilateralConundrum - Quadrilateral Conundrum is a simple Tetris homebrew clone for ps1.
https://github.com/dhustkoder/pschip8 - PlayStation 1 Chip8 Interpreter
https://github.com/komos90/psx-dev - A repo for bare metal psx mips stuff
https://github.com/johanfredin/psx-dev - more Code Examples.
https://github.com/micklemacklemore/playstationAssembly - Some simple Playstation 1 assembly examples.
https://github.com/micklemacklemore/psx_cube_demo - Spinning cubes C example.
https://github.com/david4599/Devinette-for-Playstation-1 - Guessing Game (more or less) for the Playstation 1.
https://github.com/jonipievilainen/playstation-1-game-dev - PSX development on WinXP + PsyQ
https://github.com/petrusd987/PSXTemplate - A simple template for a Playstation 1 game using PSXSDK
https://github.com/aaronjamt/3-Player-Pong - A 3-player WIP Pong-style game that links a TI-86 Graphing Calculator and a Sony PlayStation 1 through a network. Players 1 and 2 use the PlayStation, while Player 3 can affect the game using the calculator.
https://github.com/aj50009/psge - playstation 1 game engine (psge) (not completed/never finished)
https://github.com/zid/psx - PSX example code remote backup
https://github.com/megakode/psx-lighting-example - Simple lighting example for the Playstation 1
https://github.com/Monakou/PSX_Programs - programs written for the PlayStation 1, using PsyQ libraries
https://github.com/vinicyusmacedo/psxdev-experiments - Some PSX experiments http://www.psxdev.net/help.html
https://github.com/williamblair/PSX-Lowlevel - Low level playstation 1 programming (no sdk)
https://github.com/williamblair/PSYQ_cplusplus - C++ implementation of psyq tutorial/example programs for the sony playstation 1 (psx)
https://github.com/Chip-84/chip-84-psx - Chip-84 port to the PlayStation 1
https://github.com/Bigbudddo/psx-block-breaker - First attempt at creating a PlayStation 1 (PSX) game from scratch without following tutorial games and only using documentation.
https://github.com/AlekseyKolesnikov/Classic-Card-Games-PSX - This is a game for PSX (PlayStation 1), written at 2000. (source code)
https://github.com/williamblair/psn00b_progs - Playstation 1 Programs using PSn00bSDK
https://github.com/L-proger/PS1Dev - PlayStation1 sandbox project
https://github.com/juanmv94/Flappy-Adventure-X/ - Juannmv94's prototype 2D/3D flappy bird platformer
https://github.com/sk-io/psx-engine - Tive's 3D FPS engine
https://github.com/ABelliqueux/Bow_and_Arrow_psx - Remake of 1992's dos game Bow & Arrow
https://github.com/ABelliqueux/nolibgs_hello_worlds - Repo of PSX examples NOT using libgs
https://psx.schnappy.xyz - utils, sdk, roms, samples... archive
https://github.com/Galbar/GGJ-2017 - Deathball, game with ball physics
https://github.com/Wituz/wituz-youtube/tree/master/ps1-game-tutorial - Wituz's ps1 game tutorial companion github page
https://download.blender.org/source/chest/neogeo/playstation_engine/ - Legacy blender game engine code for PSX exports
https://github.com/alextrevisan/PS1FixedPoint - FixedPoint Arithmetic in C++ for PS1 using PSn00bSDK and modern C++
https://github.com/alextrevisan/LastSurvivor - PS1 Game using modern c++ and PSn00bSDK
https://github.com/NDR008/psxBreakout - PsyQ - NDR's Breakout game demo using PSQY + nugget.
https://github.com/ABelliqueux/ovl-upload - On-demand overlay upload from PC to PSX
https://github.com/cuckydev/PSXFunkin - Unofficial PSX port of Friday Night Funkin'
https://github.com/ArthCarvalho/a-game-engine - A game engine for the PlayStation 1.
https://github.com/ABelliqueux/nolibgs_demo - A PSX demo CD using overlays, fmv streaming and mod sound playback