Games like EchoesⅡ
Games like EchoesⅡ include Stoneshard, Shattered Pixel Dungeon, Elin, Vampire Survivors, and The Binding of Isaac: Rebirth. We matched them by the tags players give EchoesⅡ on Steam (RPG, Roguelike, Mystery Dungeon, Traditional Roguelike, and 2D): closest matches first, and among equally close ones the better-known games.

Stoneshard
Shared: RPG · Roguelike · Pixel Graphics

Shattered Pixel Dungeon
Shared: Roguelike · Traditional Roguelike · RPG

Elin
Shared: Roguelike · RPG · Traditional Roguelike

Vampire Survivors
Shared: 2D · Pixel Graphics · Roguelike

The Binding of Isaac: Rebirth
Shared: Roguelike · Pixel Graphics · Indie

Undertale
Shared: RPG · Pixel Graphics · 2D

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

DELTARUNE
Shared: RPG · Pixel Graphics · 2D

Rogue Legacy
Shared: Roguelike · RPG · 2D

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

Skul: The Hero Slayer
Shared: Roguelike · 2D · Pixel Graphics

Dungeons of Dredmor
Shared: Roguelike · RPG · Traditional Roguelike

Path of Achra
Shared: Roguelike · RPG · Traditional Roguelike

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

Sephiria
Shared: Roguelike · RPG · Pixel Graphics

The World is Your Weapon
Shared: RPG · Roguelike · Mystery Dungeon

Magicite
Shared: RPG · Roguelike · 2D

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

Peglin
Shared: Roguelike · Pixel Graphics · RPG

Chained Echoes
Shared: RPG · Pixel Graphics · 2D

Noita
Shared: Roguelike · Pixel Graphics · 2D

Crypt of the NecroDancer
Shared: Roguelike · Pixel Graphics · RPG

Tangledeep
Shared: Traditional Roguelike · Mystery Dungeon · RPG

Hero Siege
Shared: RPG · Pixel Graphics · Roguelike