Hi @kaldaien, thanks for your query. To get started with the Tobii Core SDK you will need to install the SDK Package via nuget within Visual Studio.
We describe in more detail how to accomplish this @ https://tobii.github.io/CoreSDK/articles/getting_started.html
Therafter, you can download and run some of the Core SKD sample programs which you can find @ https://github.com/Tobii/CoreSDK
wherein is contained a number of simple applications that show you the capability of your eye tracker for personal development.
Please try out these links and kindly let us know if you require further assistance.