To achieve a better screen resolution for this game in Windows 10, edit the registry at Computer\HKEY_CLASSES_ROOT\VirtualStore\MACHINE\SOFTWARE\WOW6432Node\Sierra On-Line\Cataclysm by setting screenDepth 32, screenHeight 1080, screenWidth 1920 (with decimal base) or whatever your preferred resolution is. I ran the game before doing this and set it to OpenGL. Credit to /user/markhobsie/ on Reddit.