Games like 2 Volt
Games like 2 Volt include Portal, Portal 2, Defy Gravity Extended, LIMBO, and Seen. We matched them by the tags players give 2 Volt on Steam (Action, Platformer, Puzzle, Puzzle Platformer, and 2.5D): closest matches first, and among equally close ones the better-known games.

Portal
Shared: Puzzle · Puzzle Platformer · Sci-fi

Portal 2
Shared: Platformer · Puzzle · Puzzle Platformer

Defy Gravity Extended
Shared: Platformer · Puzzle Platformer · Puzzle

LIMBO
Shared: Puzzle Platformer · Puzzle · Platformer

Seen
Shared: Puzzle · Platformer · Action

INSIDE
Shared: Puzzle Platformer · 2.5D · Indie

Planet of Lana
Shared: Action · Puzzle Platformer · Puzzle

Trine 2: Complete Story
Shared: Platformer · Puzzle Platformer · Puzzle

Out There Somewhere
Shared: Platformer · Puzzle · Action

Human Fall Flat
Shared: Puzzle · Puzzle Platformer · Action

Oddworld: New 'n' Tasty
Shared: Platformer · Puzzle Platformer · Puzzle

BEEP
Shared: Platformer · Action · Puzzle

Max: The Curse of Brotherhood
Shared: Platformer · Puzzle Platformer · Action

EDGE
Shared: Puzzle · Action · Puzzle Platformer

FEZ
Shared: Platformer · Puzzle · Indie

MO:Astray
Shared: Action · Platformer · Puzzle Platformer

Little Nightmares
Shared: Puzzle Platformer · Puzzle · Singleplayer

Teslagrad
Shared: Platformer · Puzzle · Action

Unravel
Shared: Action · Puzzle · Platformer

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

FAR: Lone Sails
Shared: 2.5D · Puzzle · Singleplayer

Black The Fall
Shared: Action · Platformer · Puzzle

FAR: Changing Tides
Shared: Puzzle Platformer · 2.5D · Platformer

Braid
Shared: Puzzle · Puzzle Platformer · Platformer