Games

I've never heard or seen anybody else mention Suzerain. It's like a choose-your-own-adventure political strategy game, which is pretty unique. You are the new leader of a fictional nation wrestling with corruption. Your decisions will affect the outcome. Game is only $6 on Steam right now and is well worth it.

Also worth mentioning Ostriv, a beautiful city-builder in which you build an 18th Century Ukrainian village, complete with individual little villagers wearing their villager clothes. It's lovely and made by ONE GUY, as best I can tell? Also, last I saw, the entire game was somehow under 1 GB, if I remember correctly. It's absurd.

OMG-Z It's a playstation mini for the PS3/PSP.

Warp on the PS3.

Donut County isn't really a nobody game. But I never see it mentioned.

After Hades, I hope some folks went back and played Supergiant’s other titles. I love them all. But even amongst them, Pyre is the underdog, unknown, shunned. And I think it’s fantastic. The music and writing is top notch. You can really see the bones of Hades in all their games, but they polished their world building and story telling to perfection in this one.

rogue Lords: it is inspired by Slay the Spire (StS). Card game with roguelike element. Here, the cards are replaced by your minions skill. But the right set of skill is less frustating to build than in StS. Making it a more fun experience, and the graphics are way above StS(not hard). As in StS , with luck/skill you can manage to build some 'infinite deck" where you never let go of the control of the battle.

• Beacon Pines -- a charming mystery story with anthropomorphic animals. Has an interesting take on the visual novel formula by having you unlock new dialogue choices as you progress through the story; that way, you naturally explore different paths the story might take. Night in the Woods and (possibly) OneShot fans might like this one.
• Oolite -- a solid FOSS remake of 1984's Elite. Has a bunch of mods for it; some expand the gameplay quite substantially.
• Orbiter Space Flight Simulator -- imagine a Microsoft Flight Simulator game, but you're going to space instead. Or Kerbal Space Program, but without the rocket building mechanic. That being said, KSP fans (and fans of space in general) should enjoy it.
• Transcendence -- Star Control II meets Rogue. A cult classic in the space sim genre that's been in development since 1995. Space dogfighting, trading, mining, smuggling etc, but also traditional roguelike stuff like unlabeled barrels and containers (= undiscovered potions) and permadeath (optional). Highly moddable, uses XML as the modding language. Has a free version (see link) and a Steam release, which includes the paid expansions.

I had a great time with a couple card battlers last year, Cobalt Core and Nitro Kid.

Cobalt Core has a similar presentation to FTL, with a turn-based format instead. Plenty to do in it, great soundtrack, charming writing.

Nitro Kid is on a more traditional 2D grid with an isometric viewpoint. It appealed greatly to my love of 80's settings, but I'd wait for a sale as it's thin on content.

Blasphemous.

Fantastic metroidvania meets soulslike game. The art style, the lore, the atmosphere, and by God - the music!

The combat is not super great, but it's capable enough for a metroidvania.

I haven't played the second one, I hear it's kinda hit and miss.

From The Depths -- very deep large vehicle design and combat game, prepare to happily lose months of your life

Barotrauma -- help crew a submarine under the command of the captain to perform missions in an alien open world. fun multiplayer with good in game VOIP

Phoenotopia: Awakening – an amazing metroidvania-related game. Relatively more popular than the other games I list, but is honestly one of my favorite games of all time.

Vision: Soft Reset – a metroidvania, but you can travel backwards and forwards in time and this really matters for gameplay.

Bombe – Minesweeper, but instead of solving the puzzles manually, you create rules ("if there is a cell with the number N and there are N empty cells around it, mark them all as mines") which the game applies automatically.

SOLAS 128 – a puzzle game where you redirect signals in a huge machine, just a great experience if you like puzzle games.

Dominions (Dominions 6 just came out, but it's an iterative game so try 4 or 5 first)

So it's like civilization and battle simulator had a baby, where armies are managed by the unit and there are simulated battles of thousands.

But all the civs are loosely based on different existing mythologies and there's a crazy complex magic system

Oh, and you get to create a god that you can totally battle with.

If you like civ-like games, it's a really unique and satisfying twist on the genre with an incredible amount of sheer depth.

Void Stranger

Can of Wormholes

Skator gator is a really fun 3d platformer. It has some time trials that I got into when I never care about things like that. It's cute and controls very well.

Superfighters (original web game) and Superfighters Deluxe (on steam)

Really good 2D platform brawler based around weapon drops.

Paradigm

Treasure Adventure Game, maybe? I believe it's free, though there's a paid remake of it named Treasure Adventure World now.
Cutesy "kid goes on adventure" 2d platformer with sailing and some Metroidvania-y or Zelda-y factors. Cute pixel art and the music is very well done.

Black Souls 2

Universim.

Shadow of the Forbidden Gods - a strategy game where you play as the ancient cthonic entity waking up because the stars are right. Set in a fantasy world where the forces of good slowly become aware of the coming apocalypse and attempt to forestall your return. You have to get past the janky UI and some dreadful AI art, but the gameplay is unique and satisfying.

Sebil Engineering has a really fun mechanic I've never seen before. Its like those Hot Wheels tracks you always wanted as a kid but your parents never got you, but even better. I guess its a traffic control game? Anyone have other examples of these?