Games like SFERA
Games like SFERA include SANABI, Broforce, SONIC X SHADOW GENERATIONS, Skul: The Hero Slayer, and Katana ZERO. We matched them by the tags players give SFERA on Steam (Action, Adventure, Platformer, Shooter, and 2D Platformer): closest matches first, and among equally close ones the better-known games.

SANABI
Shared: Action · Adventure · 2D Platformer

Broforce
Shared: Action · Platformer · 2D

SONIC X SHADOW GENERATIONS
Shared: Action · Platformer · 3D Platformer

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

Katana ZERO
Shared: Action · Platformer · 2D Platformer

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

Celeste
Shared: Platformer · 2D Platformer · Pixel Graphics

Gravity Circuit
Shared: Action · Platformer · 2D Platformer

Smilemo
Shared: Action · Adventure · Platformer

NINJA GAIDEN: Ragebound
Shared: Action · Platformer · 2D Platformer

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

Zombotron
Shared: Action · Adventure · 2D

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

Super Bernie World
Shared: Action · Adventure · 2D Platformer

Mark of the Ninja
Shared: Platformer · Action · Adventure

Sonic Origins
Shared: Action · Adventure · 2D Platformer

Pizza Tower
Shared: 2D Platformer · Platformer · Action

Neon White
Shared: Action · Platformer · 3D Platformer

Gato Roboto
Shared: Action · Adventure · Platformer

Out There Somewhere
Shared: Platformer · Adventure · Action

Gal Guardians: Demon Purge
Shared: Action · Adventure · Platformer

Momodora: Reverie Under The Moonlight
Shared: 2D Platformer · Side Scroller · Pixel Graphics

Deadlight
Shared: Action · Platformer · Adventure

Sonic Adventure DX
Shared: Platformer · Adventure · Action