Games like ErMa (Early Mammal)
Games like ErMa (Early Mammal) include Terraria, Black Myth: Wukong, Black Desert, Farever, and Rise of the Tomb Raider™. We matched them by the tags players give ErMa (Early Mammal) on Steam (Action, Action RPG, Action-Adventure, Sandbox, and Collectathon): closest matches first, and among equally close ones the better-known games.

Terraria
Shared: Sandbox · 2D · Exploration

Black Myth: Wukong
Shared: Action RPG · Action · Action-Adventure

Black Desert
Shared: Action RPG · Sandbox · Exploration

Farever
Shared: Action · Action RPG · Action-Adventure

Rise of the Tomb Raider™
Shared: Action · Action-Adventure · Exploration

Dragon's Dogma 2
Shared: Action RPG · Action · Action-Adventure

Hogwarts Legacy
Shared: Exploration · Action-Adventure · Action RPG

Assassin's Creed® Origins
Shared: Action-Adventure · Action · Action RPG

SPORE™
Shared: Sandbox · Exploration · Action

Minecraft Dungeons II
Shared: Action · Action RPG · Action-Adventure

Monster Hunter: World
Shared: Action · Action RPG · RPG

Fallout 4
Shared: Exploration · Action · RPG

Assassin's Creed® Odyssey
Shared: Action-Adventure · Action · Exploration

God of War Ragnarök
Shared: Action · Action-Adventure · Action RPG

Crimson Desert Enhanced
Shared: Action · Exploration · Action-Adventure

Minecraft Dungeons
Shared: Action · Action RPG · Action-Adventure

Wayfinder
Shared: Action RPG · Action · Exploration

Castlevania: Belmont's Curse
Shared: Action · Action RPG · Action-Adventure

The Elder Scrolls IV: Oblivion Remastered
Shared: Action RPG · Exploration · Action-Adventure

鬼谷八荒 Tale of Immortal
Shared: Sandbox · Action · Exploration

Tomb Raider Game of the Year
Shared: Action · Action-Adventure · Exploration

WUCHANG: Fallen Feathers
Shared: Action RPG · Exploration · Action

A Plague Tale: Requiem
Shared: Action · Action-Adventure · Exploration

Slime Rancher
Shared: Exploration · Sandbox · Adventure