The four cores

One launcher and one runtime for all four. Every game starts retail-faithful; each core's page says where it stands today.

Where each stands

One launcher, one runtime, four cores.

the source file counts are read from the tree at develop 6332c399 · Nov 4, 2026 · each core's discs and lists on its own page

Jak and Daxter

The Precursor Legacy2001 · Playable535 source files in the treeSCUS-97124SCES-50361NTSC-U · PAL

One seamless world with no loading screens, and Precursor orbs in every corner of it.

Jak II

Haven City2003 · Playable847 source files in the treeSCUS-97265SCES-51608NTSC-U · PAL

Haven City, dark eco, and a much sharper edge than the first game.

Jak 3

The Wasteland2004 · Playable1040 source files in the treeSCUS-97330SCUS-97516SCES-52460NTSC-U · PAL

The Wasteland, light eco, and the end of the trilogy.

Jak X

Combat Racing2005 · Playable780 source files in the treeSCUS-97429NTSC-U

Combat racing across the trilogy's world, which OpenGOAL never ported.

Built with AI in the loop. Phaethon uses AI assistance for speed and accuracy, and holds it to the same bar as every other contribution: every change is read, tested and checked against the console before it lands.

Project

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Cores

Jak and Daxter Jak II Jak 3 Jak X: Combat Racing

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develop 6332c399 CI green v0.2.1 Nov 4, 2026

Phaethon is an unofficial fan project. It is not affiliated with, endorsed by or associated with Sony Interactive Entertainment, Naughty Dog or the OpenGOAL project. Jak and Daxter is a trademark of Sony Interactive Entertainment. You need your own copy of each game. Icons from Lucide, ISC; JetBrains Mono under the SIL Open Font License.

Under construction. Nothing links to playphaethon.com yet, so you have found it before it is ready. Some of what it says may be wrong, out of date or attributed to the wrong source. Treat it as a work in progress until this notice is gone.