Games like CUPLEX Soundtrack DLC
Games like CUPLEX Soundtrack DLC include Portal, Portal 2, LIMBO, Seen, and INSIDE. We matched them by the tags players give CUPLEX Soundtrack DLC on Steam (Action, Indie, Turn-Based Tactics, 3D Platformer, and Puzzle Platformer): closest matches first, and among equally close ones the better-known games.

Portal
Shared: Puzzle Platformer · Puzzle · 3D Platformer

Portal 2
Shared: Puzzle · Puzzle Platformer · 3D Platformer

LIMBO
Shared: Indie · Puzzle Platformer · Puzzle

Seen
Shared: Indie · Action · Puzzle

INSIDE
Shared: Puzzle Platformer · Indie · Dark

Little Nightmares
Shared: Puzzle Platformer · Indie · Puzzle

Tomb Raider Game of the Year
Shared: Action · Third Person · Story Rich

Batman™: Arkham Knight
Shared: Action · Third Person · Story Rich

The Last Campfire
Shared: Indie · Puzzle · Singleplayer

Sonic Frontiers
Shared: Action · 3D Platformer · 3D

Rise of the Tomb Raider™
Shared: Action · Third Person · Singleplayer

EDGE
Shared: Indie · Action · Puzzle Platformer

Lies of P
Shared: Action · Story Rich · Third Person

Little Nightmares II
Shared: Puzzle · Dark · Singleplayer

Candleman: The Complete Journey
Shared: Action · Indie · Puzzle

God of War
Shared: Action · Story Rich · Third Person

COCOON
Shared: Indie · Puzzle · Puzzle Platformer

Pumpkin Jack
Shared: Action · 3D Platformer · Indie

Planet of Lana
Shared: Action · Puzzle Platformer · Puzzle

Defy Gravity Extended
Shared: Indie · Puzzle Platformer · Action

Buckshot Roulette
Shared: Indie · Dark · 3D

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

Bendy and the Dark Revival
Shared: Action · Indie · Singleplayer

The Talos Principle 2
Shared: Puzzle · Puzzle Platformer · Story Rich