RPCS3 emulator adds retro Steam theme, XMB game launch still in progress
The PlayStation 3 emulator RPCS3 now includes a community-made UI stylesheet recreating the look of an older Steam interface, per multiple outlets. The team also confirmed that launching games from the PS3's XMB menu remains unavailable, requiring a major core rework that is ongoing.
Bottom line — The Old Steam theme is a cosmetic addition; XMB game launching needs multi-process support, per the RPCS3 team.
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- The theme, created by community member FlexBy, features a muted green palette and text-heavy layout, and is selectable under Config > GUI > UI Stylesheets, according to TweakTown and Notebookcheck.
- The theme was merged into RPCS3's master branch on September 10, 2026, per windowsforum.com, and appeared in a development-build changelog the next day.
- RPCS3 can boot the XMB interface for settings and custom themes, but cannot launch games from it, the team stated in response to a fan query, per TweakTown.
- The XMB limitation stems from a need for multi-process support, described by the team as 'a huge core rework that is on-going,' with no release date given, per GizNewsDaily.
- The theme joins existing bundled stylesheets like 'Darker Style by TheMitoSan' and 'YoRHa by Ani,' windowsforum.com noted.