Locate the PortalKnights.exe file. Right-click it and select "Run as Administrator" to ensure the game has the necessary permissions to save your progress.
Ensure your DirectX and Visual C++ Redistributables are up to date. If the game crashes on launch, check the _Redist folder inside the game directory for these installers. PC System Requirements Requirement Recommended OS Windows 7/8/10 (64-bit) Windows 10 (64-bit) Processor Intel Core i3-2100 Intel Core i5-8400 Memory Graphics NVIDIA GeForce GTX 470 NVIDIA GeForce GTX 970 DirectX Version 11 Version 11 Troubleshooting Tips
Open the extracted folder and check the DLC or Add-ons directory. Version 1.7.2 usually bundles all previous content, including the Druid and Rogue classes.