If the game won't launch in fullscreen, you can force windowed mode via the Windows Registry under HKEY_CURRENT_USER\Software\SekOst\Diggles\Screen .
The version you are likely looking for includes several critical stability fixes released shortly after the 2020 digital debut: Diggles: The Myth of Fenris Free Download (v2.1...
While you might see "free download" links on various sites, is no longer abandonware. It was officially re-released in December 2020 by publisher SNEG with technical updates for modern PCs . If the game won't launch in fullscreen, you
The re-release includes patches up to v2.1.1.10 , which fixed several legacy bugs, improved memory usage, and added DirectX 11 support . The re-release includes patches up to v2
Addressed issues in the "Crystal World" cutscenes and various 4K resolution crashes .
Re-added the in-game console (accessible via the -console parameter) and optimized memory for those using community mods . Quick Tips for New Players
For those looking to play , specifically searching for the modern version (v2.1), Where to Get the Game