Celeste Unity and FMOD

Hello I’m just wondering do I have to purchase the Celeste unity project to run it with FMOD?

Celeste hasn’t been written in Unity, and the project isn’t public. You only have to buy the game on Steam, download the FMOD project and connect it with liveupdate.

To add on to Alcibiade, Celeste was written in C# using the using the MonoGame framework and the FMOD C# wrapper if you’re wondering.

To confirm what Alcibiade already said, you only need the FMOD Studio project (which you can get for free from the Learning Resources section of our downloads page) and a playable copy of Celeste (which you can purchase on Steam or directly from Matt Makes Games).