Games like Grave Danger
Games like Grave Danger include LIMBO, BADLAND: Game of the Year Edition, Broforce, Dust: An Elysian Tail, and Pikuniku. We matched them by the tags players give Grave Danger on Steam (Action, Indie, Adventure, Platformer, and 2D): closest matches first, and among equally close ones the better-known games.

LIMBO
Shared: Indie · Puzzle Platformer · Platformer

BADLAND: Game of the Year Edition
Shared: Indie · Adventure · Action

Broforce
Shared: Action · 2D · Platformer

Dust: An Elysian Tail
Shared: Action · Indie · Platformer

Pikuniku
Shared: Indie · Adventure · Action

Human Fall Flat
Shared: Adventure · Action · Puzzle

Out There Somewhere
Shared: Indie · Platformer · Adventure

Cuphead
Shared: Platformer · Indie · 2D

It Takes Two
Shared: Adventure · Local Co-Op · Puzzle

Hollow Knight
Shared: Platformer · Indie · 2D

Rocketbirds: Hardboiled Chicken
Shared: Indie · Action · Platformer

ANIMAL WELL
Shared: Platformer · Puzzle Platformer · Puzzle

Portal 2
Shared: Platformer · Puzzle · Puzzle Platformer

Defy Gravity Extended
Shared: Indie · Platformer · Puzzle Platformer

Skul: The Hero Slayer
Shared: Action · Indie · 2D

Rayman® Origins
Shared: Platformer · Adventure · 2D

BEEP
Shared: Indie · Adventure · Platformer

Shovel Knight: Treasure Trove
Shared: Platformer · Indie · Action

Little Nightmares
Shared: Adventure · Indie · Puzzle Platformer

Rayman® Legends
Shared: Adventure · Action · Platformer

ibb & obb
Shared: Indie · Platformer · Local Co-Op

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

MO:Astray
Shared: Action · Indie · Adventure

Planet of Lana
Shared: Action · Puzzle Platformer · Platformer

