Games like R-Naught
Games like R-Naught include LISA: The Painful, Baldur's Gate 3, OMORI, Tales of the Black Forest, and Clair Obscur: Expedition 33. We matched them by the tags players give R-Naught on Steam (CRPG, JRPG, RPG, 2D, and Top-Down): closest matches first, and among equally close ones the better-known games.

LISA: The Painful
Shared: RPG · Dark Humor · Post-apocalyptic

Baldur's Gate 3
Shared: RPG · CRPG · Story Rich

OMORI
Shared: RPG · Story Rich · 2D

Tales of the Black Forest
Shared: RPG · Horror · Pixel Graphics

Clair Obscur: Expedition 33
Shared: RPG · JRPG · Story Rich

Chained Echoes
Shared: RPG · JRPG · 2D

Eastward
Shared: RPG · Story Rich · JRPG

FINAL FANTASY
Shared: JRPG · RPG · 2D

Finding Paradise
Shared: 2D · RPG · Story Rich

Look Outside
Shared: RPG · Horror · 2D

Encased: A Sci-Fi Post-Apocalyptic RPG
Shared: CRPG · RPG · Post-apocalyptic

Impostor Factory
Shared: 2D · RPG · Story Rich

Suikoden I&II HD Remaster Gate Rune and Dunan Unification Wars
Shared: JRPG · RPG · 2D

Just a To the Moon Series Beach Episode
Shared: RPG · JRPG · Story Rich

Persona 5 Royal
Shared: JRPG · RPG · Story Rich

Fallout 2: A Post Nuclear Role Playing Game
Shared: RPG · Post-apocalyptic · CRPG

OCTOPATH TRAVELER™
Shared: JRPG · RPG · Story Rich

Felvidek
Shared: RPG · JRPG · 2D

Fear & Hunger 2: Termina
Shared: RPG · JRPG · Horror

UnderRail
Shared: RPG · CRPG · Post-apocalyptic

Metaphor: ReFantazio
Shared: RPG · JRPG · Turn-Based Combat

Mewgenics
Shared: RPG · Dark Humor · 2D

Eiyuden Chronicle: Hundred Heroes
Shared: JRPG · RPG · Story Rich