Games like Spear Leap Saga
Games like Spear Leap Saga include Celeste, Super Meat Boy, SANABI, Jump King, and VVVVVV. We matched them by the tags players give Spear Leap Saga on Steam (2D Platformer, Adventure, Precision Platformer, Singleplayer, and Retro): closest matches first, and among equally close ones the better-known games.

Celeste
Shared: Precision Platformer · 2D Platformer · Pixel Graphics

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

SANABI
Shared: 2D Platformer · Adventure · Pixel Graphics

Jump King
Shared: Precision Platformer · Adventure · Platformer

VVVVVV
Shared: Precision Platformer · 2D Platformer · Platformer

Pizza Tower
Shared: 2D Platformer · Platformer · Singleplayer

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

The Messenger
Shared: Retro · Platformer · Pixel Graphics

Downwell
Shared: Precision Platformer · 2D Platformer · Pixel Graphics

The End Is Nigh
Shared: Precision Platformer · Adventure · Platformer

Hollow Knight
Shared: Platformer · Singleplayer · 2D

Rain World
Shared: Platformer · Pixel Graphics · Adventure

Sonic Origins
Shared: 2D Platformer · Adventure · Retro

Sonic Mania
Shared: Retro · Platformer · 2D

Thomas Was Alone
Shared: 2D Platformer · Platformer · Precision Platformer

Dead Cells
Shared: Adventure · 2D · Pixel Graphics

Reventure
Shared: Adventure · Pixel Graphics · Singleplayer

Out There Somewhere
Shared: Adventure · Platformer · Pixel Graphics

Owlboy
Shared: Adventure · Pixel Graphics · Platformer

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

Hollow Knight: Silksong
Shared: Singleplayer · 2D · Platformer

Geometry Dash
Shared: Precision Platformer · 2D · Singleplayer

LIMBO
Shared: Platformer · Adventure · Singleplayer

Katana ZERO
Shared: 2D Platformer · Pixel Graphics · Platformer