Games like Wave Dungeon
Games like Wave Dungeon include Shattered Pixel Dungeon, Stoneshard, Tangledeep, Tales of Maj'Eyal, and Elin. We matched them by the tags players give Wave Dungeon on Steam (RPG, Traditional Roguelike, Mystery Dungeon, Turn-Based Strategy, and Roguelike): closest matches first, and among equally close ones the better-known games.

Shattered Pixel Dungeon
Shared: Traditional Roguelike · RPG · Roguelike

Stoneshard
Shared: RPG · Roguelike · Pixel Graphics

Tangledeep
Shared: Traditional Roguelike · Mystery Dungeon · RPG

Tales of Maj'Eyal
Shared: Traditional Roguelike · Roguelike · RPG

Elin
Shared: RPG · Roguelike · Traditional Roguelike

One Way Heroics
Shared: Traditional Roguelike · Mystery Dungeon · Dungeon Crawler

Shiren the Wanderer: The Tower of Fortune and the Dice of Fate
Shared: RPG · Mystery Dungeon · Roguelike

Noita
Shared: Roguelike · Pixel Graphics · Dungeon Crawler

Slice & Dice
Shared: Turn-Based Strategy · Roguelike · RPG

Path of Achra
Shared: RPG · Roguelike · Traditional Roguelike

The Binding of Isaac: Rebirth
Shared: Roguelike · Dungeon Crawler · Pixel Graphics

Dungeons of Dredmor
Shared: Traditional Roguelike · RPG · Roguelike

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

UnderMine
Shared: RPG · Dungeon Crawler · Pixel Graphics

Darkest Dungeon®
Shared: RPG · Dungeon Crawler · Roguelike

Enter the Gungeon
Shared: Roguelike · Pixel Graphics · Dungeon Crawler

Hero Siege
Shared: RPG · Pixel Graphics · Roguelike

Crypt of the NecroDancer
Shared: Roguelike · Dungeon Crawler · Pixel Graphics

Megaloot
Shared: RPG · Dungeon Crawler · Roguelike

Sephiria
Shared: Roguelike · RPG · Pixel Graphics

Crown Trick
Shared: RPG · Roguelike · Dungeon Crawler

Touhou Genso Wanderer -Reloaded-
Shared: RPG · Roguelike · Mystery Dungeon

Moonlighter
Shared: Pixel Graphics · RPG · Roguelike