Games like Beam Cat
Games like Beam Cat include Thank Goodness You're Here!, Hollow Knight, Laughing to Die, Rogue Legacy 2, and GRIS. We matched them by the tags players give Beam Cat on Steam (Adventure, Casual, Arcade, Platformer, and 2D Platformer): closest matches first, and among equally close ones the better-known games.

Thank Goodness You're Here!
Shared: Adventure · Casual · 2D Platformer

Hollow Knight
Shared: Platformer · 2D · Adventure

Laughing to Die
Shared: Adventure · Casual · Platformer

Rogue Legacy 2
Shared: Arcade · Platformer · Adventure

GRIS
Shared: Adventure · Platformer · Hand-drawn

Sonic Superstars
Shared: Adventure · Platformer · Casual

BEEP
Shared: Adventure · Platformer · 2D

Cuphead
Shared: Platformer · Cartoon · 2D

Sonic Origins
Shared: Adventure · 2D Platformer · Platformer

To The Core
Shared: Casual · Arcade · Adventure

Hollow Knight: Silksong
Shared: 2D · Platformer · Adventure

Banana
Shared: Casual · 2D · Arcade

Downwell
Shared: Platformer · Arcade · 2D Platformer

Celeste
Shared: Platformer · 2D Platformer · Adventure

Super Fancy Pants Adventure
Shared: Adventure · Casual · Platformer

SANABI
Shared: Adventure · 2D Platformer · 2D

Cyberhunt
Shared: Casual · Adventure · Arcade

Chained Together
Shared: Adventure · Casual · Platformer

DuckTales: Remastered
Shared: Adventure · Platformer · Casual

Pikuniku
Shared: Adventure · Casual · Indie

Defy Gravity Extended
Shared: Platformer · 2D · Casual

Melvor Idle
Shared: Casual · Adventure · 2D

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

FEZ
Shared: Platformer · Adventure · Casual