: If you own a physical DVD copy, the modern method is to bypass the in-game prompt by activating the code through the publisher's website. Log in to the Gaijin Store
Because the DRM server is offline, you must use unofficial but safe methods to remove the activation requirement entirely. These methods are generally considered "abandonware fixes" as the game is no longer commercially sold or supported.
The activation pop-up is often a separate windowed process that requires specific legacy components to render correctly.
, you typically need to manually activate the game through the developer's portal or update the legacy Yuplay client. Manual Activation via Gaijin Support