Games like 7n7
Games like 7n7 include LIMBO, Planet of Lana, Out There Somewhere, SANABI, and ANIMAL WELL. We matched them by the tags players give 7n7 on Steam (Action, Psychological Horror, Puzzle, Bullet Hell, and Adventure): closest matches first, and among equally close ones the better-known games.

LIMBO
Shared: Puzzle · Puzzle Platformer · Platformer

Planet of Lana
Shared: Action · Puzzle · Puzzle Platformer

Out There Somewhere
Shared: Puzzle · Platformer · Adventure

SANABI
Shared: Action · Adventure · 2D Platformer

ANIMAL WELL
Shared: Puzzle · Platformer · Puzzle Platformer

Jump King
Shared: Psychological Horror · Action · Adventure

Broforce
Shared: Action · Platformer · Shooter

Little Nightmares
Shared: Adventure · Puzzle · Puzzle Platformer

Little Nightmares II
Shared: Puzzle · Adventure · Psychological Horror

Webbed
Shared: 2D Platformer · Puzzle Platformer · Platformer

Portal 2
Shared: Puzzle · Platformer · Puzzle Platformer

Öoo
Shared: Puzzle · Puzzle Platformer · 2D Platformer

I wanna be the Creator
Shared: Action · Puzzle · Adventure

Exit the Gungeon
Shared: Action · Bullet Hell · Adventure

ElecHead
Shared: Puzzle · Action · Platformer

Super Bernie World
Shared: Action · Adventure · Psychological Horror

BOKURA
Shared: Psychological Horror · Action · Adventure

Laughing to Die
Shared: Puzzle · Adventure · Psychological Horror

Neva
Shared: Adventure · Puzzle · Platformer

Celeste
Shared: Platformer · 2D Platformer · Pixel Graphics

MO:Astray
Shared: Action · Adventure · Platformer

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

Squishy the Suicidal Pig
Shared: Puzzle · Platformer · Adventure

Katana ZERO
Shared: Action · Platformer · 2D Platformer