Games like Ascension: The Immortal Alchemist
Games like Ascension: The Immortal Alchemist include Portal 2, Chained Together, LIMBO, Tomb Raider Game of the Year, and Hollow Knight. We matched them by the tags players give Ascension: The Immortal Alchemist on Steam (Difficult, Runner, Puzzle Platformer, Action, and 3D Platformer): closest matches first, and among equally close ones the better-known games.

Portal 2
Shared: Puzzle Platformer · Puzzle · Platformer

Chained Together
Shared: Adventure · Puzzle Platformer · Platformer

LIMBO
Shared: Puzzle Platformer · Puzzle · Adventure

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

Hollow Knight
Shared: Difficult · Platformer · Exploration

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

Portal
Shared: Puzzle Platformer · 3D Platformer · Puzzle

Black Myth: Wukong
Shared: Action · Mythology · Adventure

It Takes Two
Shared: Adventure · Puzzle Platformer · Puzzle

Praey for the Gods
Shared: 3D Platformer · Adventure · Action

Tomb Raider IV-VI Remastered
Shared: Action · Adventure · 3D Platformer

Monster Hunter: World
Shared: Action · Difficult · Adventure

Ori and the Will of the Wisps
Shared: Action · Adventure · Platformer

Hollow Knight: Silksong
Shared: Difficult · Exploration · Adventure

Crash Bandicoot™ 4: It’s About Time
Shared: Difficult · Action · 3D Platformer

Human Fall Flat
Shared: Puzzle Platformer · Adventure · Puzzle

Sonic Frontiers
Shared: 3D Platformer · Action · Adventure

Kena: Bridge of Spirits
Shared: Action · Adventure · 3D Platformer

Trine 3: The Artifacts of Power
Shared: Puzzle Platformer · 3D Platformer · Action-Adventure

ANIMAL WELL
Shared: Puzzle Platformer · Exploration · Puzzle

Hob
Shared: Action · Adventure · Puzzle Platformer

Seen
Shared: Adventure · Action · Puzzle Platformer

Rain World
Shared: Difficult · Exploration · Atmospheric

DARK SOULS™ III
Shared: Difficult · Exploration · Atmospheric