@Grant I found the solution! My problem was that I hadn’t downloaded the “SRanipal_SDK_1.1.0.1.zip” that contains the asset that has to be imported into Unity to make the Eye Tracking works. I only had downloaded the “VIVE_SRanipalInstaller_1.1.2.0.msi” software. The software and the SDK are here: https://hub.vive.com/en-US/download