and another potential candidate.

Dead Effect
https://web.archive.org/web/20140313020906/http://deadeffect.com/

"February 01, 2014

We are now on Steam Greenlight with a PC, MAC and Linux versions of Dead Effect. "

Sorry to add to your load.


Tesla Effect: A Tex Murphy Adventure
The promise: https://www.gamingonlinux.com/articles/tesla-effect-a-tex-murphy-adventure-will-be-release-on-linux.2325

The break: https://boilingsteam.com/tex-murphy-tesla-effect-may-not-come-to-linux/


Dungeon of the Endless
The promise: https://gtm.steamproxy.vip/app/249050/discussions/0/648813728676481466/?ctp=3#c540739405900931730


And the hunt continues...

Potential games to be added to the list, if more are still being added. I might be accidentally naming one someone has already mentioned, but most are new.

The Incredible Adventures of Van Helsing
http://gtm.steamproxy.vip/app/272470/discussions/0/558753718150755794/#c558753803702615444

Gabriel Knight: Sins of the Fathers 20th Anniversary Edition
https://web.archive.org/web/20160303212151/http://forum.pinkertonroad.com/showthread.php?737-Gabriel-Knight-Sins-of-the-Fathers-20th-Anniversary-Remake-Announced%21&p=27586&viewfull=1 ("Technical Director"'s post)

Talisman: Digital Edition
https://gtm.steamproxy.vip/app/247000/discussions/0/810938082607422853/?ctp=3
https://gtm.steamproxy.vip/sharedfiles/filedetails/?id=97489182

Cloudberry Kingdom
https://web.archive.org/web/20150327125129/http://www.pwnee.com/

Endless Legend
https://web.archive.org/web/20151029230209/http://forums.amplitude-studios.com/content.php?468-Endless-Legend-Progress-Report2

Disciples II
https://games.slashdot.org/story/02/12/13/1916224/linux-port-of-disciples-2-announced

3D Realms Anthology (no longer on Steam, I think?)
https://3drealms.com/faq/