Thanks to https://www.reddit.com/user/galapag0/ and his thread:
thread (https://www.reddit.com/r/Amstrad/comments/13v32ls/you_can_replay_driller_from_the_amstrad_cpc/).
CPC Driller upgrade through ScummVM :D
By the way, here are the files needed. Had to go through a few disk images to find the good ones.
I tried it, it runs very fluidly and nicely, but for some reason I can't activate any of the rendering options...?
[url="https://www.cpcwiki.eu/forum/index.php?action=dlattach;attach=39609;type=preview;file"]DrillerScummVM.rar[/url]