Games like Anima
Games like Anima include Portal 2, Portal, LIMBO, Little Nightmares, and Planet of Lana. We matched them by the tags players give Anima on Steam (Free to Play, 3D Platformer, Singleplayer, Puzzle Platformer, and Sci-fi): closest matches first, and among equally close ones the better-known games.

Portal 2
Shared: Singleplayer · Puzzle · Platformer

Portal
Shared: 3D Platformer · Puzzle Platformer · Singleplayer

LIMBO
Shared: Puzzle Platformer · Puzzle · Platformer

Little Nightmares
Shared: Singleplayer · Puzzle Platformer · Adventure

Planet of Lana
Shared: Puzzle Platformer · Singleplayer · Female Protagonist

Shady Part of Me
Shared: Puzzle · Singleplayer · 3D Platformer

Ratchet & Clank: Rift Apart
Shared: 3D Platformer · Singleplayer · Adventure

Poppy Playtime
Shared: Free to Play · Singleplayer · Puzzle

Contrast
Shared: Female Protagonist · Singleplayer · Puzzle

The Talos Principle 2
Shared: Puzzle · Sci-fi · Puzzle Platformer

Defy Gravity Extended
Shared: Puzzle Platformer · Singleplayer · Platformer

Pseudoregalia
Shared: 3D Platformer · Singleplayer · Female Protagonist

COCOON
Shared: Puzzle Platformer · Puzzle · Adventure

Papo & Yo
Shared: 3D Platformer · Puzzle Platformer · Singleplayer

The Last Campfire
Shared: Singleplayer · Puzzle · Adventure

A Hat in Time
Shared: 3D Platformer · Female Protagonist · Platformer

Tomb Raider Game of the Year
Shared: Singleplayer · Adventure · Female Protagonist

A Story About My Uncle
Shared: Singleplayer · 3D Platformer · Adventure

Halo Infinite
Shared: Free to Play · Singleplayer · Sci-fi

Sonic Adventure DX
Shared: 3D Platformer · Singleplayer · Platformer

GRIS
Shared: Singleplayer · Female Protagonist · Platformer

Viewfinder
Shared: Puzzle Platformer · Singleplayer · Puzzle

Seen
Shared: Singleplayer · Puzzle · Puzzle Platformer

Stray
Shared: Singleplayer · Adventure · Puzzle