You don't need to go to Steam for Elminage Gothic.

https://www.gog.com/game/elminage_gothic

The game is good, but be aware that the game can get quite brutal at times (though at least it starts easy combat-wise; it's not until the second dungeon that you fight enemies that can decapitate you, for example).

Some other games worth a look might be the grid-based isometric games, a recent example being:

Balrum (real-time but switches to turn-based in combat)

A similar looking but simpler choice would be the Eschalon series (Book 1, Book 2 and Book 3 - turn-based throughout).

Then you have the roguelikes listed in this GOGmix, though it misses GOG's most recent addition:

Ancient Domains of Mystery

Dragon Wars, which is also on GOG.

Sort of, they share some code for the libraries, but React OS also has a lot of independent code for things like the hardware drivers that play a role as well.

Most likely, if it's going to work in React OS it will in Wine as well, but there's definitely cases where React OS will run things that Wine won't.

Haviing played Eschalon book 2, I've got to not recommend the entire series. It is a mediocre series at best, with a few major flaws. Such as the laughably slow walking speed compared to any other RPG.

Just a heads-up, if you're searching for the Eye of the Beholder series and Dungeon Hack on GOG, you won't find them under these titles, they're hidden as "Forgotten Realms: The Archive - Collection One" and "Collection Three".

Note that the games in Collection Two (Pool of Radiance series) are also grid based first person outside of combat (but turn into a strategy game (like in a TRPG) when combat starts), so that might be an option as well. If you like it, there's also the Krynn series, which does show up on a search for "krynn".

(Of course, the games do inherit many of the faults of 1ed AD&D, including attacks missing a lot and HP beign low at first, racial level limits (making many race/class combinations useless, especially bad in Pools of Darkness), and the sexist limit on female strength.)

(Also, did somebody mention Might and Magic 1-5 yet in this topic? While less dungeon crawley, these games would likely still be good choices for the OP.)

Edit: Actually, there's one exception in Collection Two: Hillsfar, which is a very different game. But, that's only one game out of the collection of 8, and I don't think anybody buys the whole collection just for that one game.

I've played it and enjoyed it, and while the game is first person grid based with turn-based combat, it feels less dungeon-crawley than other similar looking games. The game has less of an emphasis on dungeon crawling and fighting enemies for XP and loot (enemies don't ever drop any items), and more of an emphasis on exploration and (adventure-game style) puzzle solving (though fortunately the puzzle solving event isn't hard, and there are sometimes even multiple solutions to some of them).

(One tip: if you happen to run across an item called Golden Boots, don't ever get rid of them, or the game becomes unwinnable and you will have to restart (though fortunately you get to keep your levels, stats, and spells, but not items if you do need to restart. Also, Druid Magic is *mandatory* (though there is an alternate way to get ahold of it).)

I lol´d :-D

- The Legacy : Realm of Terror (very appropriate for Halloween)
- Grimoire (notorious, but actually a good spiritual successor to the DW Bradley Wizardry's)
- Space Hulk (DOS game)

Then, there's these two lists for more :
- https://steamcommunity.com/groups/gridder
- http://www.dungeoncrawlers.org/

Here's another grid-based dungeon crawler called "Heroes of the Monkey Tavern", currently on sale:

https://store.steampowered.com/app/492500/Heroes_of_the_Monkey_Tavern/

Paper Sorcerer

Albion

Nordlandtrilogie, better known as "Realms of Arkania" outside of Germany

Thank you very much!!

Except for Terraria atm, I tend to play only portable gaming devices, so my expertise runs in that area. The Etrian series is among my favorites, especially when you can use the lower screen and stylus to create your map. I've snipped that list to games I have played, but left Labyrinth of Refrain because a friend who loves dungeon-crawlers is currently obsessed with it. Persona Q and The Dark Spire are not that different to the Etrian series in terms of gameplay. (Love this style of gaming so much I've pre-ordered Etrian Odyssey Nexus and will also pre-order Persona Q2 when it gets localized.)

As for Heroes of the Monkey Tavern, I played the demo on the Switch, and it's got the worst controls of any games I've played in years. Of course, it may be different on PC, and I hope it's better, because it genuinely looks interesting.

Good luck and have fun!