Based on how people say they discover new games, I thought this might be handy. Steam isn't the easiest to wade through. I'm not sure my tags were broad enough, as most everything in this post looks kind of "old school". Assuming I add to this thread, I'll experiment with the tags. The problem is that if you just use "RPG" you get a ridiculous number of games, most of which aren't really what I would consider an RPG, like tower defense, platformers and 4x games. I guess, theoretically, you can role play in just about any game.
Since the game description carries over when I post a link, I won't bother adding commentary. These are from the last couple of months or so:
Forgotten Realms: The Archives - Collection One
store.steampowered.com
Forgotten Realms: The Archives - Collection Two
store.steampowered.com
Forgotten Realms: The Archives - Collection Three
store.steampowered.com
Yaengard
store.steampowered.com
Fabled Lands
store.steampowered.com
The Iron Oath
store.steampowered.com
CHRONO CROSS: THE RADICAL DREAMERS EDITION
store.steampowered.com
Dark Quest: Board Game
store.steampowered.com
Potato Flowers in Full Bloom
store.steampowered.com
Black Geyser: Couriers of Darkness
store.steampowered.com
Knights of the Chalice 2
store.steampowered.com
Dungeons & Dragons: Ravenloft Series
store.steampowered.com
DEMON GAZE EXTRA
https://store.steampowered.com/app/1732340/DEMON_GAZE_EXTRA/
The Book of the Game (Adventures in Leman)
store.steampowered.com
Sword of Atlas
store.steampowered.com
Paths & Danger
store.steampowered.com
Dungeon Reels Tactics
store.steampowered.com
Heartless
store.steampowered.com
Eiyuden Chronicle: Rising
store.steampowered.com
Godfall Ultimate Edition
store.steampowered.com
Since the game description carries over when I post a link, I won't bother adding commentary. These are from the last couple of months or so:
Forgotten Realms: The Archives - Collection One

Forgotten Realms: The Archives - Collection One on Steam
The Forgotten Realms Archive - Collection One allows you to journey through the set of adventures: the Eye of the Beholder trilogy, a collection of first-person, real-time role-playing games.
Forgotten Realms: The Archives - Collection Two

Forgotten Realms: The Archives - Collection Two on Steam
The Forgotten Realm Archives - Collection Two brings a healthy mix of “Gold Box” and nostalgia goodness to your PC, along with a combination of adventure builders, turn-based and real-time role-playing gameplay.
Forgotten Realms: The Archives - Collection Three

Forgotten Realms: The Archives - Collection Three on Steam
This package celebrates the elements of the AD&D video games that you know and love - vast dungeons and beautiful locations to explore, a wide variety of monsters to slay, quests to complete, adventurers to assemble and worlds to be saved.
Yaengard

Yaengard on Steam
Who will you become to triumph? A turn-based RPG where your personality traits change your powers and proficiencies. Combine personality traits, rare weapons, and 20+ classes into endless team compositions; combos & builds are the keys to surviving your long journey towards Yaengard.
Fabled Lands

Fabled Lands on Steam
Fabled Lands is a challenging old-school narrative RPG set in an open world. Complete quests, fight, trade goods and develop your character. Explore a vast land of adventure: travel across the war-torn kingdom, survive the plains of howling darkness, and escape the Court of Hidden Faces.
The Iron Oath

The Iron Oath on Steam
Command, endure, and prosper in The Iron Oath, a turn-based tactical RPG where the fate of your mercenary company rests on your decisions. Customize your roster, build your renown, and discover the secrets that await in the medieval fantasy realm of Caelum.
CHRONO CROSS: THE RADICAL DREAMERS EDITION

CHRONO CROSS: THE RADICAL DREAMERS EDITION on Steam
CHRONO CROSS is an RPG that transcends time and space, unfolding across two interlinked parallel worlds. With over 40 party members to meet, people and dimensions will intertwine in this epic drama about the planet itself.
Dark Quest: Board Game

Dark Quest 3 on Steam
A rogue-lite tabletop that mixes card based exploration with turn based combat. Create your party, draw adventure cards, roll dice and fight monsters to defeat the sorcerer and his magic.
Potato Flowers in Full Bloom

Potato Flowers in Full Bloom on Steam
Explore an underground labyrinth in search of mythical seeds in this 3D dungeon crawler RPG! Leaving things to chance will prove fatal🌱Explore underground labyrinths, expanding your range of actions as you go🌿Light up the path, defeat those in front of you, grow stronger, and unravel the mysteries
Black Geyser: Couriers of Darkness

Black Geyser: Couriers of Darkness on Steam
Black Geyser is an isometric, party-based fantasy RPG inspired by genre classics. Recruit characters with unique personalities and explore a land ravaged by civil war and a mysterious curse of greed. Your choices, good or evil, will decide the fate of the Kingdom of Isilmerald.
Knights of the Chalice 2

Knights of the Chalice 2 on Steam
Knights of the Chalice 2 is a 2D RPG with turn-based combat. Create six Adventurers and set forth on an epic adventure against Evil. Overcome the odds with superior tactics. Enjoy a whole new dimension of complexity and variety based on the 3.5 ruleset! Includes a Module Editor.
Dungeons & Dragons: Ravenloft Series

Dungeons & Dragons: Ravenloft Series on Steam
Step into a world of gothic and Egyptian horror and adventure, set in the campaign setting of Ravenloft. This series of entrancing horrors includes Ravenloft: Strahd's Possession and its sequel, Ravenloft: Stone Prophet.
DEMON GAZE EXTRA
https://store.steampowered.com/app/1732340/DEMON_GAZE_EXTRA/
The Book of the Game (Adventures in Leman)

Leman on Steam
A bloodthirsty, high fantasy, turn-based combat, open-world RPG! Light on story, this game is about deadly tactical combat and developing a legendary adventuring party!
Sword of Atlas

Sword of Atlas on Steam
Combine fast-paced, real-time strategy with grid-based combat in this character-driven roleplaying game.
Paths & Danger

Paths & Danger on Steam
Embark on an enchanting journey to Paths & Danger, a masterfully crafted procedural turn-based RPG that seamlessly blends simplicity with tactical brilliance. Get ready to be captivated as you assemble a formidable fellowship, where the art of teamwork takes center stage.
Dungeon Reels Tactics

Dungeon Reels Tactics on Steam
Dungeon Reels Tactics is a challenging party based RPG roguelike with Slot Machine based Combat. Your party members' unique slot machine will supply your abilities each turn. Make the best decisions to succeed in Battle. Lose party members, recruit new ones, and try to reach The "Great Evil".
Heartless

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Eiyuden Chronicle: Rising

Eiyuden Chronicle: Rising on Steam
Eiyuden Chronicle: Rising is an action RPG set in the same world as Eiyuden Chronicle: Hundred Heroes. Features town-upgrading mechanics, fast-paced combat. A prequel to the world of the Eiyuden Chronicle: Hundred Heroes.
Godfall Ultimate Edition

Godfall Ultimate Edition on Steam
Aperion is on the precipice of ruin. You are the last of the Valorian knights, god-like warriors able to equip Valorplates, legendary armor sets that transform wielders into unstoppable masters of melee combat. Ascend in Godfall, the first-of-its-kind, looter-slasher, melee action-RPG.