The last couple days, I've been trying out a bunch of new games I've bought on GOG. There's still a few left to try out, but here's the ones I've played so far:
Card City Nights

A card game where you alternate between going around, challenging opponents and making/tweaking your decks. Super charming presentation and I dig the quirky humor.
The game rules are kind of unusual. Feels like a bit like the card game you could play inn Final Fantasy 9, since card positioning on a grid matters.
I like it quite a bit so far.
Also of importance: The soundtrack is cool and subdued. Great stuff.
Alien Breed
A conversion of an old Amiga game. Is supposed to be a classic, but I think it blows. Bad graphics and sound, bad controls, really boring, repetitive and superficial gameplay. Not gonna bother with this one any more.
Worms

A version of the old DOS classic Worms that has some extra content I've never seen before. It's a lot of fun.
I put more effort into naming my team members than I should
A light, but tricky and very fun strategy game. It's a blast in 30-60 minute doses.
Worms 2
Totally locks up Windows 10 to the point where you have to force a reset...
Couldn't get it to work. User commennts say it's a common issue on new versions of Windows.
Oh well. It cost very, very little and I much prefer the aesthetic of Worms 1 anyway.
Eschalon Book 1

Isometric view, single character, turn based RPG that I think is the work of a single developer (same guy who made the Geneforge games). I could be wrong, but I'm too lazy to double check. Anyway: Game was free. Played it a bit and it seems decent, if a bit on the bland side and WHY IS EVERYTHING SO TINY!?
Desktop Dungeons

I think this one must have been an iPad game or something? It's a turnbased roguelike, so I was interested right away. It's fairly complex in some ways, but the moment to moment gameplay is very simple. Feels a bit spammy, to be honest. It seems fun, but I like something that feels just a tad more meaty.