Hello!
We've taken a closer look into the issue and it seems that Unity has dropped support for every version of Windows before 10 for Unity versions 2023.2 and later (which is the Unity version we're using).
We're really sorry but it seems that there isn't a lot we can do at this point other than recommend upgrading to a newer version of Windows.
Information from Unity about the issue:
https://forum.unity.com/threads/dropping-support-for-windows-7-as-a-target-for-the-unity-standalone-windows-player-in-unity-2023-2.1443097/
Thank you for showing interest in the game, we hope you'll get to play it some day!
// Tobias