Games like Beyond Doors
Games like Beyond Doors include Super Meat Boy, Celeste, Geometry Dash, Hollow Knight, and Sonic Mania. We matched them by the tags players give Beyond Doors on Steam (Hand-drawn, Side Scroller, Precision Platformer, 2D Platformer, and Platformer): closest matches first, and among equally close ones the better-known games.

Super Meat Boy
Shared: Precision Platformer · Platformer · 2D Platformer

Celeste
Shared: Precision Platformer · Platformer · 2D Platformer

Geometry Dash
Shared: Precision Platformer · 2D · Platformer

Hollow Knight
Shared: Platformer · 2D · Hand-drawn

Sonic Mania
Shared: Platformer · 2D · Retro

Cuphead
Shared: Platformer · Hand-drawn · 2D

Thomas Was Alone
Shared: Side Scroller · Platformer · 2D Platformer

SANABI
Shared: 2D Platformer · 2D · Adventure

Shovel Knight: Treasure Trove
Shared: Platformer · Retro · 2D

Jump King
Shared: Precision Platformer · Platformer · 2D

Downwell
Shared: Precision Platformer · Platformer · 2D Platformer

Thank Goodness You're Here!
Shared: Hand-drawn · Adventure · 2D Platformer

GRIS
Shared: Hand-drawn · Atmospheric · Platformer

VVVVVV
Shared: Precision Platformer · Platformer · 2D Platformer

Pizza Tower
Shared: 2D Platformer · Platformer · Fast-Paced

Nine Sols
Shared: Hand-drawn · Platformer · 2D

Prince of Persia The Lost Crown
Shared: 2D Platformer · Side Scroller · Precision Platformer

Lone Fungus
Shared: 2D Platformer · Precision Platformer · Platformer

Symphonia
Shared: Precision Platformer · Platformer · 2D Platformer

Laika: Aged Through Blood
Shared: 2D Platformer · Atmospheric · Platformer

Bō: Path of the Teal Lotus
Shared: Side Scroller · Precision Platformer · 2D Platformer

Momodora: Reverie Under The Moonlight
Shared: Side Scroller · 2D Platformer · 2D

Blasphemous 2
Shared: Side Scroller · 2D Platformer · Adventure

Alex Kidd in Miracle World DX
Shared: Precision Platformer · 2D Platformer · Platformer