Orange Box SP brings Half-Life 2, its Episodes and Portal natively to PS4 with GoldHEN
sausage88's port runs the Source engine and Valve's Linux game code on a jailbroken PS4, at 60 fps through most of Half-Life 2. You need the games on Steam and a PC or Mac to install them.
Source on PS4, no emulator
The Orange Box never got a native PS4 version. Orange Box SP, which sausage88 opened on GitHub on November 2, loads Valve's 64-bit Linux game code through a custom ELF loader, on top of the open source nillerusr/source-engine base. Graphics follow the route Valve used for its Linux and Mac ports, from D3D9 through togl to OpenGL, with an OpenGL layer written by the author.
A single app lets you pick Half-Life 2, Episode One, Episode Two, Portal or Half-Life: Source. The author reports 60 fps with 4x MSAA through most of Half-Life 2. There's DualShock 4 gyro aiming and aim assist, and text and voices follow the console's language if the localized files are in your game folder. A separate repository does the same for Counter-Strike: Source.
Your games, from Steam
The package only contains the engine, binaries and a little configuration. Maps, models, textures and sounds come from your own copies on Steam, so you need an account that owns Half-Life 2 and any other games you want to play.
The PKG installs through GoldHEN, which currently has a public jailbreak up to firmware 14.00. You then turn on its FTP server, and an installer for Windows or Mac finds the console, downloads the games with SteamCMD and uploads them. Expect about 10 GB. Your Steam password goes into SteamCMD, and the installer never sees or stores it. It's unsigned, so Windows and macOS may warn you when you open it.
A week of releases
The latest, 14.26 from November 6, brings back vibration and Half-Life 2 trophies, applies subtitles, field of view and difficulty without a restart, and removes a hang when saving or quitting. Two days earlier the Steam Deck GamepadUI menu arrived, with PlayStation button icons.
The author calls this an early release that hasn't been fully tested, so crashes and graphical glitches are possible. The game sends anonymous crash reports by itself.
In a few spots in Half-Life: Source, parts of the world can disappear as you walk. The project has no connection to Valve.
