Games like NetHack: Legacy
Games like NetHack: Legacy include Tales of Maj'Eyal, Dungeons of Dredmor, Dungeon of the ENDLESS™, Shattered Pixel Dungeon, and Rogue Fable III. We matched them by the tags players give NetHack: Legacy on Steam (Traditional Roguelike, Roguelike, Indie, Adventure, and RPG): closest matches first, and among equally close ones the better-known games.

Tales of Maj'Eyal
Shared: Traditional Roguelike · Roguelike · Dungeon Crawler

Dungeons of Dredmor
Shared: Traditional Roguelike · Roguelike · RPG

Dungeon of the ENDLESS™
Shared: Roguelike · Indie · RPG

Shattered Pixel Dungeon
Shared: Traditional Roguelike · Roguelike · Dungeon Crawler

Rogue Fable III
Shared: Traditional Roguelike · Roguelike · Indie

Stoneshard
Shared: Roguelike · RPG · Procedural Generation

The Binding of Isaac: Rebirth
Shared: Roguelike · Indie · Dungeon Crawler

The Binding of Isaac
Shared: Roguelike · Indie · Procedural Generation

Noita
Shared: Roguelike · Indie · Dungeon Crawler

Moonlighter
Shared: Roguelike · Dungeon Crawler · RPG

Heroes of Hammerwatch II
Shared: RPG · Roguelike · Dungeon Crawler

Caves of Qud
Shared: Traditional Roguelike · Procedural Generation · Roguelike

Dungeonmans
Shared: Traditional Roguelike · Roguelike · RPG

Darkest Dungeon®
Shared: Roguelike · Dungeon Crawler · RPG

Elin
Shared: Roguelike · Traditional Roguelike · RPG

Rogue's Tale
Shared: Traditional Roguelike · Roguelike · Indie

Ancient Dungeon
Shared: Roguelike · Adventure · Dungeon Crawler

Path of Achra
Shared: Roguelike · Traditional Roguelike · RPG

Delver
Shared: Dungeon Crawler · Indie · RPG

Gunfire Reborn
Shared: Roguelike · Indie · RPG

Touhou Genso Wanderer -Reloaded-
Shared: Indie · Roguelike · Adventure

UnderMine
Shared: Indie · RPG · Dungeon Crawler

Cogmind
Shared: Traditional Roguelike · Roguelike · Dungeon Crawler

Hades
Shared: Indie · Roguelike · Dungeon Crawler