Games like Sunya
Games like Sunya include SANABI, Skul: The Hero Slayer, BlazBlue Entropy Effect, Owlboy, and Katana ZERO. We matched them by the tags players give Sunya on Steam (Action, Adventure, Action-Adventure, Platformer, and 2D Platformer): closest matches first, and among equally close ones the better-known games.

SANABI
Shared: Action · Adventure · Pixel Graphics

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

BlazBlue Entropy Effect
Shared: Action · Action-Adventure · 2D

Owlboy
Shared: Adventure · Platformer · Pixel Graphics

Katana ZERO
Shared: Action · Pixel Graphics · Platformer

Celeste
Shared: Platformer · Pixel Graphics · 2D Platformer

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

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

Mina the Hollower
Shared: Action-Adventure · Pixel Graphics · 2D Platformer

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

Super Meat Boy
Shared: Platformer · 2D Platformer · 2D

Pizza Tower
Shared: 2D Platformer · Platformer · Indie

Phoenotopia: Awakening
Shared: Action · Adventure · Platformer

The Messenger
Shared: Platformer · Action · Pixel Graphics

Rogue Legacy
Shared: Platformer · Action · Indie

Trine 5: A Clockwork Conspiracy
Shared: Action · Adventure · Platformer

Broforce
Shared: Action · Pixel Graphics · Platformer

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

Hollow Knight
Shared: Platformer · 2D · Adventure

Sonic Superstars
Shared: Action · Adventure · Platformer

Gravity Circuit
Shared: Action · Platformer · 2D

Blasphemous 2
Shared: Adventure · Fantasy · 2D Platformer

Dead Cells
Shared: Adventure · 2D · Pixel Graphics

Sonic Origins
Shared: Action · Adventure · 2D Platformer