For game development and modding, SteosVoice has over 400 ultra-realistic, high-quality voices. It's geared for content creators, modders and game developers, with a range of plans and an API to build its technology into your project. It's used by YouTube channels, companies and online schools, and voice actors can license their voices and earn passive income through royalties.
Another top contender is PlayHT, which has a library of over 600 AI voices in multiple languages and accents. It offers custom pronunciations, voice inflections, real-time voice cloning and an API for other uses, including games. PlayHT has a strong ethics and safety stance, along with a lot of resources and support, so it's a good choice for game developers.
Replica is another top contender, with a range of AI models for commercial use. With features like a Voice Library, Voice Director for instant voice overs, and Voice Lab for custom voice creation, it's good for gaming, animation, film and more. Replica ensures voice actors get paid and that generated voice overs can be used for full commercial use, so it's good for immersive gameplay and dynamic character voices.
If you're looking for a tool with voice cloning abilities, EasyDX is another good option. It lets you create unique character voices and manage game audio in 25+ languages. The bulk import feature, coming soon, will let developers generate audio for all dialogue lines at once, speeding up scriptwriting and audio production.