Hexplore is a goddamn masterpiece that is a pain in the ass to get running. I have a netbook specifically for running it.

As for the rest of this thread, GOG effectively rejected the Infogrammes releases?

It's a very underrated game.

Meanwhile, if you'd rather not wait till (or if) GOG releases the games (probably sometime during the next planet realignment), Fanatical offers a new bundle containing almost all of the Classics Digital releases on Steam for a mere buck:
https://www.fanatical.com/en/bundle/dollar-classics-bundle

Games included are:

Alien Rampage
Bubble Ghost
Central Intelligence*
Chaos Control
Chamber of the Sci-Fi Mutant Priestess
Daemonsgate
Drakkhen
ELF*
Eternam
The Great Escape*
Hostage: Rescue Mission
King's Table: The Legend of Ragnarok
Last Rites*
Marco Polo
Mystical
Prophecy I - The Viking Child
Pushover*
Sleepwalker*
Spiritual Warfare & Wisdom Tree Collection
Tunnel B1*
Where Time Stood Still*

*Those games are all bundled together in one key.