Games like Rex: Another Island
Games like Rex: Another Island include Shovel Knight: Treasure Trove, Katana ZERO, Hollow Knight, Axiom Verge, and Hotline Miami. We matched them by the tags players give Rex: Another Island on Steam (Indie, Action, Dinosaurs, Platformer, and Retro): closest matches first, and among equally close ones the better-known games.

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

Katana ZERO
Shared: Action · Pixel Graphics · Platformer

Hollow Knight
Shared: Platformer · Indie · Great Soundtrack

Axiom Verge
Shared: Indie · Platformer · Action

Hotline Miami
Shared: Action · Indie · Great Soundtrack

The Messenger
Shared: Platformer · Retro · Indie

Broforce
Shared: Action · Pixel Graphics · Indie

VVVVVV
Shared: Indie · Platformer · Pixel Graphics

Hollow Knight: Silksong
Shared: Indie · Platformer · Great Soundtrack

Celeste
Shared: Indie · Pixel Graphics · Platformer

Pizza Tower
Shared: Indie · Great Soundtrack · Platformer

Out There Somewhere
Shared: Indie · Platformer · Pixel Graphics

Super Meat Boy
Shared: Indie · Platformer · Pixel Graphics

Skul: The Hero Slayer
Shared: Indie · Action · Pixel Graphics

Sonic Mania
Shared: Platformer · Retro · Great Soundtrack

SANABI
Shared: Action · Pixel Graphics · Indie

Freedom Planet
Shared: Action · Platformer · Indie

Hotline Miami 2: Wrong Number
Shared: Action · Pixel Graphics · Great Soundtrack

Risk of Rain (2013)
Shared: Indie · Action · Platformer

Gato Roboto
Shared: Indie · Action · Pixel Graphics

FEZ
Shared: Indie · Platformer · Pixel Graphics

Gravity Circuit
Shared: Action · Indie · Platformer

UFO 50
Shared: Indie · Action · Retro

Cuphead
Shared: Platformer · Indie · Great Soundtrack