Altered Studio
Speech-to-speech voice morphing and character voice creation for game production
FreemiumVerifiedNarrative and Dialogue
AI Voice and Dialogue Tools
AI voice tools cover real-time TTS for NPCs, voice cloning for consistent characters, and voice changers for rapid prototyping. Licensing is critical — always confirm commercial game distribution rights before shipping.
8 tools
How to choose
- For production dialogue (ship-ready), use ElevenLabs, Replica Studios, or Inworld AI.
- For real-time NPC speech in Unity/Unreal, Inworld AI's streaming TTS has the lowest latency.
- For prototyping without a budget, use the open-source Bark model locally.
- Check commercial rights per plan — free tiers are usually personal-use only.
Convai
AI NPC platform with vision, embodied animations, and 65-language voice for Unity and Unreal
FreemiumVerifiedGame Design
Inworld AI
#1 ranked real-time TTS API — low-latency voice for game NPCs and voice agents
FreemiumVerifiedGame Design
Murf AI
Studio-quality AI voiceovers for game trailers and cutscenes
FreemiumVerifiedPublishing and Marketing
PlayHT
Ultra-realistic AI voice generation with emotion control
FreemiumVerifiedNarrative and Dialogue
Replica Studios
Game-specific AI voice actors with ethical licensing for indie developers
PaidVerifiedNarrative and Dialogue
Voicemod
Real-time AI voice changer for game characters and streaming
FreemiumVerified
WellSaid Labs
Enterprise AI voice studio for professional game narration and character dialogue
PaidVerifiedNarrative and Dialogue
FAQ
- Can I use AI voices in a commercial game on Steam?
- Yes, on paid plans. ElevenLabs Starter ($5/mo), Replica Studios Indie ($24/mo), and Inworld AI Developer ($20/mo) all include commercial game distribution rights. Free tiers are typically personal use only. Always check the specific plan's license terms before shipping.
- What is the best AI voice tool for real-time NPC dialogue?
- Inworld AI offers the lowest-latency streaming TTS designed for real-time game applications, with Unity and Unreal SDKs. ElevenLabs also has a streaming API that works well for games with pre-authored dialogue trees.
- How many characters does a typical RPG need voiced?
- A typical indie RPG has 5,000–20,000 words of dialogue. At 120 chars per word, that's 600K–2.4M characters. ElevenLabs Creator plan (100K chars/mo) would cover a small game in 6–24 months of generation, or you can batch-generate all dialogue at once with a higher-tier plan.
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