SimlishTTS

SimlishTTS is a fun and immersive voice mod for R.E.P.O. that magically converts all spoken English text into Simlish—the quirky, nonsense language from The Sims. Give your game a whimsical, playful twist with every line spoken!

This mod works in both singleplayer and multiplayer, and only players with the mod installed will hear the Simlish translation. Ready to speak Simlish? Let’s go!

What It Does

Automatically translates all spoken English text into Simlish
Over 153 hand-picked Simlish words mapped from real English vocabulary
Randomly adds fun Simlish exclamations and voice effects
Applies subtle voice pitch and flutter changes for natural-sounding speech
Detects if text is already Simlish to avoid repeated conversion
Works in both singleplayer and multiplayer
Only affects players who have the mod installed

How It Works

Hooks into Strobotnik.Klattersynth.Speech methods using Harmony patches
Intercepts speech calls that use StringBuilder and plain strings
Replaces English words with Simlish dictionary entries or generates gibberish syllables for unknown words
Adds randomized exclamations and voice effects to spice up speech
Adjusts voice pitch and flutter based on emotional keywords (happy, sad, excited, etc.)
Inserts natural pauses for smoother speech flow
Ensures multiplayer speech syncing without conflicts

Compatibility

Fully functional in singleplayer and multiplayer
Compatible with most other mods
Only players with SimlishTTS installed hear Simlish speech
No gameplay or performance impact beyond voice conversion

Technical

Uses Harmony to patch multiple overloads of Speech.speak and related methods
Maintains a dictionary mapping English words to Simlish equivalents
Uses regex and randomized syllable generation for unknown words
Randomizes voice parameters for expressive, natural-sounding speech
Includes detailed debug logging for troubleshooting

Credits

Created by OmniScye
Turning R.E.P.O. speech into Simlish — one silly syllable at a time!