In my project, I am building an FPS game, but I cannot find any free animation assets for the game. Where can I get free animation assets with all the animations I need?
Have you checked the Unity asset store? There should be a lot choices to choose from there. If there is nothing there try Sketchfab, which is a website filled with 3D models and assets, some of which have animation.
You could also try to make your own assets and animations using free software, so that is another option.
I hope that helped.
Mixamo is a lifesaver for me when it comes to animations and 3d models. You can find plenty of online tutorials when it comes to “how to download and use mixamo animations”.
The unity asset store is also a great marketplace.