POST VOID and Brotato

Fight N Rage was my favorite beat'em up before Streets of Rage 4 released, made by mexicans I think, very stylish and manga influenced, tons of juggling and branching paths.

Valdis Story was the hollow knight of it's generation, awesome metroidvania with great bosses and combat with good combos, but it didn't get tiresome like castlevania mirror of fate because regular enemies weren't health sponges, bosses were where you let loose.

Several hundred hours of Oxygen not included...

OMORI is incredible. The gameplay is okay (typical JRPG stuff), the music is okay (I've heard better in other games), but the storytelling is some of the best in all of video games, up there with Silent Hill 2 and 3.

The Binding of Isaac is an incredibly addicting game. It's basically rougelike 2D Zelda dungeons, and upgrades stack on top of each other. It's the game that I have the most hours in on Steam (specifically the much better-programmed remake, Rebirth). The DLC is great as well, adding a ton of content. Its replayability is damn near unmatched.

Super Meat Boy is just a really fun, fast paced 2D platformer, that is challenging, but fair. The controls are some of the best of any 2D platformer out there, beating out both Super Mario World and Yoshi's Island IMO.

Battle Brothers: Battle Brothers is a turn based tactical RPG which has you leading a mercenary company in a gritty, low-power, medieval fantasy world. You decide where to go, whom to hire or to fight, what contracts to take and how to train and equip your men in a procedurally generated open world campaign. The Godfather of Squad-Management-Games!

Songs of Conquest: If you like Turn-Based-Strategy and know HoMM3, you will love this game! Songs of Conquest is a turn-based strategy game inspired by 90s classics. Lead powerful magicians called Wielders and venture to lands unknown. Wage battle against armies that dare oppose you and hunt for powerful artifacts.

Undertale. I was blown away by the soundtrack and the cleverness of it all. The twist was good too, but I hated the total completion grind a bit. But it is optional.

Crypt of the Necrodancer. Again, blown away by the soundtrack and how confidently it pulled off the idea of a rogue-like rhythm game.

Insurgency: Sandstorm. This might be stretching the concept of "indie" a bit, but its predecessor was definitely an indie game. This is an excellent arcade/realistic FPS shooter.

Rain World and Space Station 13