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PS5PCEM
PlayablePlayable · Completable

Cat Quest III

Playable · Completable

A confirmed playthrough. Menus, adventure cards, dialogue, island terrain and colours are right in the captured scenes. Getting there took fixes to world orientation, stencil-only passes, AGC interpolant mapping and scanout channel order.

Test host
NVIDIA GeForce RTX 3070 Ti
Build
0.3.2
Recorded runs
2
Confirmed
September 8, 2026
Cat Quest III island gameplay with the HUD, mountains and blue sea, rendered by PS5PCEM
Cat Quest III island gameplay with the HUD, mountains and blue sea, rendered by PS5PCEM

What works

  • Complete playthrough confirmed by the maintainer.
  • The language list keeps its text and clips it inside its panel instead of being painted over.
  • Adventure selection shows slot artwork, labels, add buttons and scroll arrows.

What does not

  • Frame rate on the opening island, not correctness, is the remaining limit.

Measured performance

Opening-island samples have a median of 124 ms, roughly 8 FPS, improved from about 148 ms before the optimisation work.

NVIDIA GeForce RTX 3070 Ti

Result

Test history

Every recorded run for this title, newest first. Entries marked as a development build were never published as a release.

  1. Cat Quest III language list with readable text clipped inside its panel, rendered by PS5PCEM
    Release 0.3.0-alpha.4

    An upside-down world, corrupted text and swapped colours, all fixed

    The world rendered upside down while the UI did not; fragment coverage and stencil-only passes corrupted menu text; the original AGC interpolant-mapping interface was missing, so adventure artwork and scenery used the wrong vertex-to-fragment exports; and registered scanout formats were ignored, swapping red and blue. All four were corrected.

    Read the report →
  2. Cat Quest III island gameplay with the HUD, mountains and blue sea, rendered by PS5PCEM
    Release 0.3.0-alpha.4

    Playable and completable

    The maintainer confirmed a full playthrough. Alongside it, shader-translation work per sampled frame dropped from about 40 ms to 7 ms and buffer uploads from roughly 125 MiB to 65–75 MiB, moving the opening island from about 148 ms to a 124 ms median.

    Read the report →

Captures

Captures

Frames produced by the emulator itself during the runs above.

Cat Quest III language list with readable text clipped inside its panel, rendered by PS5PCEM

An upside-down world, corrupted text and swapped colours, all fixed

September 8, 2026 · v0.3.0-alpha.4

Cat Quest III island gameplay with the HUD, mountains and blue sea, rendered by PS5PCEM

Playable and completable

September 8, 2026 · v0.3.0-alpha.4

2

Recorded runs

NVIDIA GeForce RTX 3070 Ti

0.3.3

Current build

October 4, 2026

Playable

Result

Playable · Completable

Other titles

Playthrough reports carry the date the maintainer confirmed them. Every timing refers to the NVIDIA GeForce RTX 3070 Ti development machine and will differ on other hardware. Game content is supplied locally and is never distributed here.