Simplified and Traditional Chinese Differ
The Steam table treats them as separate language options. Simplified Chinese currently has all three checkmarks, including full audio. Traditional Chinese has interface and subtitle support but no listed full-audio checkmark.
How to Read That Difference
Traditional Chinese players may still be able to use Chinese voices by combining a Simplified Chinese audio track with Traditional Chinese text, but the storefront does not explicitly confirm independent audio and text selection. The site will not promise that combination until the menus are tested.
Release Checks
Testing will cover voice selection, subtitle script, text size, dialogue logs, cinematic subtitles, and whether language packs are separate downloads on PS5 or Steam.
Verification Note
This answer uses the current official Steam listing. Store features can change before release, so the page records a checked date and will be retested against the October 2026 retail build.