Games like Escape From Tethys
Games like Escape From Tethys include Hollow Knight, Ori and the Will of the Wisps, Hollow Knight: Silksong, The Messenger, and Skul: The Hero Slayer. We matched them by the tags players give Escape From Tethys on Steam (Action, Metroidvania, Platformer, Exploration, and Action-Adventure): closest matches first, and among equally close ones the better-known games.

Hollow Knight
Shared: Metroidvania · Platformer · 2D

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

Hollow Knight: Silksong
Shared: Metroidvania · Platformer · Indie

The Messenger
Shared: Metroidvania · Platformer · Retro

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

Axiom Verge
Shared: Metroidvania · Platformer · Action

Gato Roboto
Shared: Metroidvania · Action · Pixel Graphics

ANIMAL WELL
Shared: Metroidvania · Exploration · Platformer

SANABI
Shared: Action · Pixel Graphics · 2D

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

Constance
Shared: Metroidvania · Platformer · Action

Blasphemous
Shared: Metroidvania · Pixel Graphics · Action

Bloodstained: Curse of the Moon
Shared: Action · Platformer · Metroidvania

Rogue Legacy
Shared: Platformer · Action · Metroidvania

Odallus: The Dark Call
Shared: Action · Metroidvania · Platformer

BlazBlue Entropy Effect
Shared: Action · Platformer · Action-Adventure

F.I.S.T.: Forged In Shadow Torch
Shared: Metroidvania · Action · Platformer

Shovel Knight: Treasure Trove
Shared: Platformer · Pixel Graphics · Action

Rabi-Ribi
Shared: Metroidvania · Exploration · Pixel Graphics

UnEpic
Shared: Metroidvania · Action · Platformer

Castlevania Advance Collection
Shared: Action · Metroidvania · Action-Adventure

Broforce
Shared: Action · Pixel Graphics · Platformer

Katana ZERO
Shared: Action · Pixel Graphics · Platformer

MIO: Memories in Orbit
Shared: Metroidvania · Platformer · Exploration