r/psxdev

Hey guys, just wanted to show some progress.

Some of you might have seen the Celeste Classic collection I put out last month. It unexpectedly got picked up way outside the PS1 dev scene due to the AI connection and shared on X, Instagram, LinkedIn, even a couple of journalists got in touch.

I wanted to share this update more privately to the ps1 dev community since there is still far too much to fix for a proper release. But I wanted to give this sub an early preview, because you lot will actually know what you are looking at.

So: Half-Life, running on a real SCPH-9002. Not an emulator. It is rough at 10-15 fps, a long list of visual glitches, gameplay bugs I have not even catalogued yet. But it boots, it runs, and it is surprisingly playable with modern analog controls. Lots of creative techniques were required to even fit all enemies/weapons/animations in RAM, that and CPU are by far the biggest bottleneck and I'm still working on polishing it all.

It runs on PSoXide, a PS1 dev suite I have been building in Rust: emulator, SDK, engine, editor. The Celeste ports showed it could do 2D, this is the first real test of what the SDK can do with a 3D game this size, and honestly that is the thing I am displaying, more than Half-Life itself, having a tight integration between SDK and emulator allows me to push optimization quite hard, I've also improved the emulator considerably since it had to pick up real-hardware discrepancies at cycle-level other emulators (understandably) don't need to model.

The port will be open sourced but just not yet, I want it in a more mature state first. And there will never be a disc to download, you will need Half-Life installed on Steam and Rust to run the converter, which builds the image from your own copy.

PSoXide itself is already public if you want to poke at it: https://github.com/EBonura/PSoXide

Happy to answer anything.

We recently had the chance to interview Pasqui industry, the creator of Sibilla, an upcoming PlayStation 1 homebrew game inspired by the Italian Renaissance.

In the interview he talks about:

• Why he chose the original PS1 in 2026 instead of modern platforms.
• How the first demo was built in just 7 weeks.
• The technical challenges of running the game on real hardware (performance, clipping, CD-Rs...).
• Why Mirror's Edge, local Italian history and Renaissance legends all influenced the project.
• His plans for the full game.
• And much more!

There are also some interesting stories about his first PlayStation, early modding experiments, and how a Game Boy project eventually evolved into Sibilla.

We also wanted to make the interview accessible to as many people as possible, so it's alos available in Italian and Spanish. In fact, this is the first time we've ever published an article in Italian on PSX Homebrew Games!

If you're interested in PS1 development or homebrew, we think you'll enjoy the full interview:

Sibilla: a PS1 Game Set in Renaissance Italy

We'd also love to hear what part of the interview you found the most interesting.

I've been working on a PSX-style multiplayer horror extraction game inspired by DayZ and Lethal Company.

Set in an alternate 1980s Soviet Union after a nuclear disaster, you'll explore abandoned bunkers and other dangerous locations, scavenge for supplies, and try to make it back alive. The game can be played solo or with up to five players.

The project is still in development, and I'd love to hear what you think. Any feedback or suggestions are greatly appreciated.

If you're interested in following the game's development, joining playtests, or seeing regular progress updates, feel free to join the Discord: Discord.gg/4UttJmFSAE