Stardew Valley

Tested on Windows 7.

I would never thought that but I just bought Deponia Doomsday on steam and it is in fact playable without having steam running after it has been installed!

Win7/64

That is exactly how I did get the game so this version will work without steam. Hopefully you have a good source for the CBSP because I had to search several stores today until I found a copy.

I'm going to answer in german (easier and faster for me):

Im dem Kiosk, wo ich die Zeitschrift kaufen wollte, gab es sie natürlich nicht. Der Betreiber (1-Mann-Laden) konnte aber für mich telefonisch eine Ausgabe von einem Kollegen (anderer Laden) auftreiben, die ich morgen abholen kann. Kann es kaum noch erwarten. ;)

(Sorry for German again but I'll make it quick and painless ;))
Lustig, ich war heute vor der Arbeit beim Kiosk und habe 5 Ausgaben gesehen. Wollte die Zeitschrift aber nicht zur Arbeit schleppen und Nachmittags war alles leer inkl. der Buchhandlung und 2 weiteren Kiosken - hab dann noch eine in einem versteckten Kiosk im EKZ gefunden. Scheint wirklich begehrt zu sein. Schon nach den ersten Minuten im Spiel kann ich das auch gut verstehen. Als offensichtlicher Deponia Fan (avatar) bist du dir ja sicher bewusst, dass das Ende von Goodbye Deponia bei vielen absolut nicht gut angekommen ist und über diese Tatsache macht sich Poki schon ganz am Anfang auf seine eigene Art udn Weise und mit dem gewohnten philosophischen Hintergrund lustig. Ich werde das Spiel gaaaanz langsam genießen - wie ein gutes Menü :) Hoffentlich klappt das mit deiner Bestellung und dann wünsche ich dir viel Spaß. Kleiner Hinweis noch: das Tutorial ist dieses Mal nicht lustig, sndern nur ein mit Hinweistexten versorgter walkthrough der ersten Rätsel - ich würde es aus lassen, auch, wenn du die aus Deponia geliebt haben solltest.

And now back to English ;)

Pretty sure that Metro 2033 Redux and Metro Last Light Redux can be run without steam. I haven't tried it on Windows but copy/paste the game from a linux to another and it'll run just fine without asking for steam.

Got it. :)

Congrats! Have Fun :)

Not sure if it is mentioned, but GemCraft: Chasing Shadows is DRM free.

The folder of the game is on is called "UntitledApp" ...

Holy crap, really? I've tried them in both Windows AND Linux, and I don't think either one of them worked for me. Maybe there was an update?

I only have the "non-redux" versions on steam and they don't work. Maybe that is the reason?

Okay, the list is updated again, but I absolutely can't get the Metro Redux games working without Steam in Linux. Did you just copy it from one machine to another, and it worked? Maybe it's because there are leftover files when I try to run it without Steam on the same machine? I'd love to know how to do this, since it unfortunately seems like GOG isn't going to get the Linux versions.

Steamworld Dig can be run without steam if you use this little trick which the devs themselves have suggested here:
https://steamcommunity.com/app/252410/discussions/0/558754900103586979/#c540744936526984348

"...creating the steam_appid.txt file in the local SteamWorld Dig installation and just enter 252410 into it"

I've tested this on win7/64 and it works without any problems.

I've tested the steam_appid.txt trick from Steamworld Dig on some other games game:

This also works with Time Mysteries Inheritance Remastered (creatine steam_appid.txt and enter 350010).
This also works with Time Mysteries 2: The Ancient Spectres (create steam_appid.txt and enter 313650)
This also works with Time Mysteries 3: The Final Enigma (create steam_appid.txt and enter 319320)
This also works with 9 Clues: The Secret of Serpent Creek (create steam_appid.txt and enter 284870)
This also works with 9 Clues 2: The Ward (create steam_appid.txt and enter 369420)
This also works with Nightmares from the Deep: The Cursed Heart (create steam_appid.txt and enter 259740)
This also works with Nightmares from the Deep 2: The Siren's Call (create steam_appid.txt and enter 284790)
This also works with Nightmares from the Deep 3: Davy Jonesl (create steam_appid.txt and enter 284810)
This also works with Abyss: The Wraiths of Eden (create steam_appid.txt and enter 284710)
This also works with Clockwork Tales: Of Glass and Ink (create steam_appid.txt and enter 284830)
This also works with Dark Heritage: Guardians of Hope (create steam_appid.txt and enter 394280)
This also works with Demon Hunter: Cronicles from Beyond (create steam_appid.txt and enter 330990)
This also works with Fairy Tale Mysteries 2: The Beanstalk (create steam_appid.txt and enter 403510)
This also works with Grim Legends: The Forsaken Bride (create steam_appid.txt and enter 284850)
This also works with Grim Legends 2: Song of the Dark Swan (create steam_appid.txt and enter 279800)
This also works with Left in the Dark: No One on Board (create steam_appid.txt and enter 284890)
This also works with Mind Snares: Alice's Journey (create steam_appid.txt and enter 363330)
This also works with Queen's Quest: Tower of Darkness (create steam_appid.txt and enter 390200)
This also works with Enigmatis: The Ghosts of Maple Creek (create steam_appid.txt and enter 284750)
This also works with Enigmatis 2: The Mists of Ravenwood (create steam_appid.txt and enter 284770)

Tested on Win7/64