Games like The Final Specimen: Arrival
Games like The Final Specimen: Arrival include Shovel Knight: Treasure Trove, Hollow Knight, SANABI, Ori and the Will of the Wisps, and Pikuniku. We matched them by the tags players give The Final Specimen: Arrival on Steam (Casual, Action, Indie, Adventure, and 2D): closest matches first, and among equally close ones the better-known games.

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

Hollow Knight
Shared: Indie · Platformer · 2D

SANABI
Shared: Action · Adventure · Story Rich

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

Pikuniku
Shared: Casual · Indie · Adventure

Hollow Knight: Silksong
Shared: Indie · 2D · Great Soundtrack

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

Sonic Mania
Shared: 2D · Retro · Platformer

GRIS
Shared: Indie · Adventure · Great Soundtrack

BEEP
Shared: Indie · Adventure · 2D

Broforce
Shared: Action · 2D · Indie

UFO 50
Shared: Indie · Action · Retro

Out There Somewhere
Shared: Indie · Adventure · Platformer

Nihilumbra
Shared: Indie · Adventure · Casual

There Is No Game: Wrong Dimension
Shared: Indie · Adventure · Casual

Katana ZERO
Shared: Action · Indie · Platformer

To the Moon
Shared: Indie · Adventure · Story Rich

Super Fancy Pants Adventure
Shared: Action · Indie · Adventure

Angry Video Game Nerd Adventures
Shared: Action · Indie · Adventure

Pinstripe
Shared: Casual · Indie · Adventure

Sonic Origins
Shared: Action · Adventure · Casual

Celeste
Shared: Indie · Platformer · Great Soundtrack

LIMBO
Shared: Indie · 2D · Adventure

Brothers - A Tale of Two Sons
Shared: Adventure · Indie · Story Rich