Text to Speech for Games
SpeechGeneration AI generates character voices for games — NPCs, dialogue, cutscenes, and narration. 95+ AI voices with emotional control for immersive delivery. Multi-voice projects for full character casts. Plans start at $5/month. 10,000 characters free.
SpeechGeneration AI generates character voices for games — NPC dialogue, cutscenes, and narration — with 95+ AI voices and emotional control tags.
10,000 characters free • No credit card • Commercial use for shipped games
Why Game Developers Choose AI Voices
1,000 lines of game dialogue (averaging 100 characters each) costs approximately $50 with Studio tier on SpeechGeneration AI. The same volume from voice actors typically costs $5,000-20,000.
Fraction of Voice Acting Cost
Professional voice actors charge $200-1,000+ per session. 1,000 lines of AI dialogue costs approximately $50 with Studio tier.
Iterate Dialogue Instantly
Change a line of dialogue and regenerate in seconds. No scheduling recording sessions or re-hiring actors.
Cast Every Character
Browse 95+ distinct voices. Assign unique voices to every NPC, companion, and villain.
Bring Characters to Life
Studio+ voices support emotional tags — [angry], [whisper], [excited], [sad]. Real emotion in every line.
AI Game Voices vs. Hiring Voice Actors
| SpeechGeneration AI | Voice Actors | |
|---|---|---|
| Cost per 1,000 lines of dialogue | ~$50 with Studio | $5,000-20,000+ |
| Turnaround for script changes | Seconds (regenerate) | Days-weeks (re-record) |
| Number of unique voices | 95+ instantly available | Limited by budget |
| Emotional range | Tags: whisper, angry, sad, excited | Natural performance |
| Consistency across sessions | 100% identical every time | Varies by session |
| Language localization | 30+ languages, same voices | Hire separate actors per language |
| Best for | Indie games, prototypes, NPCs, procedural | AAA flagships, marketing trailers |
When voice actors are better: For AAA title protagonists, celebrity-driven marketing, and performances requiring extreme vocal range (singing, screaming, accents). AI voices excel for indie developers, NPC dialogue, procedural content, prototyping, and localization.
Hear Game Voice Quality
Compare voice tiers to find the right quality for your game.
Economy
Click to play
Cost-efficient narration
Studio
Best for GamesClick to play
Natural human-like narration
Studio+
Click to play
Expressive narration with emotional tone
How to Add AI Voices to Your Game
Write your dialogue scripts
Prepare character dialogue, NPC lines, cutscene narration, and in-game text.
Cast your characters
Browse 95+ voices. Assign a unique voice to each character using multi-voice projects.
Add emotional direction
Use Studio+ emotional tags — [angry], [whisper], [excited] — to direct each line's delivery.
Export audio files
Download individual MP3/WAV files per line. Import into Unity, Unreal, Godot, or any engine.
Pro tip: Generate each dialogue line as a separate audio file for easy integration. Name files with character and line IDs (e.g., 'npc_merchant_greeting_01.mp3') for organized asset pipelines.
Technical Details
Specs
- Paste dialogue text or upload scripts (PDF, DOCX, TXT)
- No per-generation character cap
- Output: MP3 (WAV also available)
- 30+ languages (Studio), 70+ (Studio+)
- Multi-voice: assign different voices per character
Emotional Tags (Studio+ Only)
Game Dialogue Budget Calculator
~55 min
Indie RPG (500 lines)
~3.5h
Visual novel (2,000 lines)
~18h
Large RPG (10,000 lines)
An indie RPG with 500 voice lines averaging 100 characters each requires ~50,000 characters. With the mixed tier strategy on the Starter plan ($5/month), that costs approximately $10-15 total across 2-3 months.
AI Voices for Every Game Element
Different game elements benefit from different voice tiers. See which works best.
Hundreds of NPC lines — merchants, guards, townsfolk
The Problem
Indie games have hundreds of NPC lines. Voicing them all with actors is budget-prohibitive, so most go text-only.
The Solution
Give every NPC a voice. Economy tier makes it affordable to voice thousands of lines — merchants, guards, townsfolk. Players prefer voiced NPCs over text-only.
Recommended Tier
Economy (0.1×)Bulk NPC lines at minimal cost.
Sample script:
Welcome, traveler! Take a look at my wares. I've got the finest potions this side of the river.
Click to play
Cinematic narration with emotional delivery
The Problem
Cutscenes and main story beats need professional, emotional delivery. This is where voice quality matters most.
The Solution
Studio+ voices with emotional tags deliver cinematic narration. Direct each line's emotion — tension in battle scenes, warmth in reunions, gravity in revelations.
Recommended Tier
Studio+ (2×)Cinematic quality with emotional control.
Sample script:
[serious] The ancient seal has been broken. [whisper] Whatever lies beyond that door... [excited] it could change everything we know about the old world.
Click to play
Tutorial instructions, menu narration, achievements
The Problem
Game tutorials, menu narration, and system messages need clear, neutral delivery. They're tedious to record.
The Solution
Economy tier is perfect for functional voice lines — tutorial instructions, loading tips, achievement notifications. Clear and consistent.
Recommended Tier
Economy (0.1×)Functional clarity at minimal cost.
Sample script:
Press the right trigger to attack. Hold the left bumper to block. Combine both for a counter-attack.
Click to play
Placeholder dialogue for development and testing
The Problem
During prototyping, developers need placeholder dialogue to test pacing, lip-sync, and gameplay feel. Placeholder text-to-speech sounds terrible.
The Solution
Use AI voices as high-quality placeholder audio during development. Many studios ship with AI voices after realizing the quality is good enough.
Recommended Tier
Studio (1×)Production-quality prototypes.
Sample script:
The artifact you seek lies in the forgotten temple. But beware — the guardians do not rest.
Click to play
Voice Tiers for Game Development
Based on Starter plan ($5/month for 60k characters)
Economy
0.1× multiplier
NPC dialogue, tutorials, system voice, bulk lines
- 15 languages
- Emotional control
~120 minutes
per month (Starter plan)
Studio
1× multiplier
Main story, companions, important NPCs, prototyping
- 30+ languages
- Emotional control
~12 minutes
per month (Starter plan)
Studio+
2× multiplier
Cutscenes, cinematics, protagonist, emotional scenes
- 70+ languages
- Emotional control
~6 minutes
per month (Starter plan)
Pro tip: Most games use a mix: Economy for background NPCs (80% of lines), Studio for story-important characters (15%), and Studio+ for cutscenes and the protagonist (5%). This keeps costs minimal while maximizing impact.
Compatible With Popular Game Engines
Exports standard MP3/WAV files that work with any engine or audio middleware that supports these formats.
Frequently Asked Questions
Can I use AI voices in a commercial game I sell on Steam?
Yes. SpeechGeneration AI audio is licensed for commercial use — including games sold on Steam, Epic, itch.io, consoles, and mobile stores. No royalties, attribution, or watermarks required. See our Commercial Use page for full licensing terms.
How many voice lines can I generate per month?
With the Starter plan ($5/month, 60k chars), you can generate about 600 short voice lines (100 chars each) with Economy tier, or 60 lines with Studio tier. The Studio plan ($30/month, 450k chars) scales to 4,500+ Economy lines per month.
Can AI voices do emotional acting?
Studio+ (2×) voices support emotional tags: [angry], [whisper], [excited], [sad], [serious], [calm]. You direct the emotion per line — similar to voice direction notes. Economy and Studio deliver professional but neutral reads.
Do the voices work with lip-sync tools?
Yes. The exported audio files (MP3/WAV) work with any lip-sync tool — SALSA, Oculus Lipsync, Rhubarb, or built-in engine tools. Generate the audio, then run it through your lip-sync pipeline.
Can I create unique character voices?
You can choose from 95+ distinct voices — different genders, ages, and speaking styles. Multi-voice projects let you assign a unique voice to each character. Currently, custom voice cloning is not available.
What format should I export for game engines?
MP3 works for most game engines. Unity, Unreal, and Godot all support MP3 natively. WAV is available if your engine requires uncompressed audio. Export individual lines as separate files for easy integration.
How does this compare to voice synthesis middleware (e.g., Replica Studios)?
SpeechGeneration AI is a general-purpose TTS tool with 95+ voices and tiered pricing. Game-specific middleware may offer runtime synthesis and tighter engine integration. SpeechGeneration AI excels for pre-rendered dialogue at lower cost.
Can I generate dialogue in multiple languages for localization?
Yes. SpeechGeneration AI supports 30+ languages with Studio voices and 70+ with Studio+. Generate the same dialogue in multiple languages using appropriate voices — no need to hire separate actors per language.
Is there a free trial for game developers?
Yes. 10,000 characters free — enough for about 100 short voice lines or 5-7 minutes of dialogue. Test all three quality tiers to decide which works for your game. No credit card required.
Can I use AI voices for game trailers and marketing?
Yes. All SpeechGeneration AI audio is licensed for commercial use including marketing, trailers, and promotional content. Studio+ tier is recommended for trailers where emotional impact matters.
Voice Your Game with AI
10,000 characters free — about 100 voice lines. No credit card required.