Voice and text-to-speech Altered Studio vs Piper
Can you ship a game made with Altered Studio or Piper? By stored vendor quotes: Altered Studio: "Paid plan only"; Piper: "Partly verified".
Both columns are the ledger's stored values. Open the tool page for the full quote and source link. This page does not invent a winner.
A paid plan is the shipping path. Free-plan output is not cleared for commercial use.
Commercial terms are only partly verified. This is not a yes.
Built only from rows with a stored vendor quote. Open each tool page for the exact sentence, source link, and fetch date.
| Fact | Altered Studio | Piper |
|---|---|---|
| Pricing | Altered Studioverified Creator is $30 per month excluding tax, billed annually, and comes with the Creator License. | Piperverified Piper is software you install yourself (pip install piper-tts). There is no paid plan; compute is on you. |
| Commercial use | Altered Studioverified The Free plan's Attribution License lets you publish Outputs on third-party platforms only if you do not use them commercially and you credit Altered (www.altered.ai). | Piperverified Piper's voice docs say Piper is intended for personal use and TTS research, that it adds no restrictions of its own on voice models, and that some voices have restrictive licenses. Check each voice's MODEL_CARD. |
| Ownership of outputs | Altered Studioverified You may use Output in Projects you distribute, but Altered keeps full ownership of the Voices. You keep ownership of your original Content, and Altered makes no ownership claim to the Outputs or your Project beyond what the terms set out. | Piperunverified Unverified. |
| License caveat | Altered Studioverified You are licensed to use Output in distributed Projects, but Altered retains ownership of the Voices; you may not register the Voices with Content ID-style systems, and you may not use the Service or Outputs to train AI or speech synthesis systems. | Piperverified The piper-tts package is GPL-3.0-or-later. That governs the engine's code if you ship or modify it, not the audio you generate. |
| Steam disclosure | Altered Studioverified Player-facing art, sound, narrative, or localization made with this tool is the kind of shipped content Steam's Content Survey asks about (Pre-Generated). This is Valve's rule, not a statement from the vendor. | Piperverified Player-facing art, sound, narrative, or localization made with this tool is the kind of shipped content Steam's Content Survey asks about (Pre-Generated). This is Valve's rule, not a statement from the vendor. |
| Engines and export | Altered Studioverified The desktop version needs a Windows PC with an 8GB+ Nvidia GPU (GTX 1080, RTX 2070, RTX 3050 or greater). | Piperverified Piper has a command-line tool, a web server, a Python API and a C/C++ API, and a Java binding is listed. It names no Unity, Godot or Unreal plugin. |