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Connect profiles, form instant game parties, and hang out with friends while playing your favorite retro classics.
Earn trophies, unlock badges, and flex your gaming achievements in real-time as you play.
Transform any retro game with real-time memory mods. Add screen shakes, visual overlays, and custom HUD effects with zero coding hassle.
CATui runs Libretro core libraries directly in-process inside Godot Engine 4.7. This eliminates inter-process communication latency and provides smooth UI overlays.
RAMP (Retro Active Memory Protocol) maps emulated RAM addresses into human-readable semantic variables, enabling real-time GDScript modding during gameplay.
Yes, CATui is 100% open-source under the MIT license without any paywalls or telemetry.
Mods are standard Godot 4.7 scenes (.tscn) and GDScripts (.gd) stored under res://ramp_mods/. See our Modding Guide in the documentation for full code examples.