Games like Little Reaper
Games like Little Reaper include The Pedestrian, Webbed, Trine 2: Complete Story, The Plucky Squire, and Trine Enchanted Edition. We matched them by the tags players give Little Reaper on Steam (Side Scroller, 2D Platformer, Puzzle Platformer, Collectathon, and Platformer): closest matches first, and among equally close ones the better-known games.

The Pedestrian
Shared: Puzzle Platformer · Side Scroller · 2D Platformer

Webbed
Shared: 2D Platformer · Puzzle Platformer · Cute

Trine 2: Complete Story
Shared: Puzzle Platformer · 2D Platformer · Platformer

The Plucky Squire
Shared: 2D Platformer · Puzzle Platformer · Cute

Trine Enchanted Edition
Shared: Puzzle Platformer · 2D Platformer · Colorful

INSIDE
Shared: Puzzle Platformer · 2.5D · 2D Platformer

Thomas Was Alone
Shared: Side Scroller · 2D Platformer · Platformer

A Hat in Time
Shared: Collectathon · Cute · Platformer

Planet of Lana
Shared: Puzzle Platformer · 2D Platformer · Platformer

Celeste
Shared: 2D Platformer · Platformer · Indie

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

LIMBO
Shared: Puzzle Platformer · Platformer · Side Scroller

Vibrant Venture
Shared: Side Scroller · 2D Platformer · Platformer

Trine 5: A Clockwork Conspiracy
Shared: Platformer · Puzzle Platformer · 2D Platformer

Klonoa Phantasy Reverie Series
Shared: Side Scroller · 2.5D · Cute

Trine 4: The Nightmare Prince
Shared: Puzzle Platformer · 2.5D · Platformer

Anomaly Agent
Shared: Side Scroller · 2D Platformer · Platformer

Pizza Tower
Shared: 2D Platformer · Platformer · Cartoony

Mind Over Magnet
Shared: Puzzle Platformer · 2D Platformer · Platformer

Braid
Shared: Puzzle Platformer · 2D Platformer · Platformer

Öoo
Shared: Puzzle Platformer · 2D Platformer · Platformer

Max: The Curse of Brotherhood
Shared: Puzzle Platformer · Platformer · Side Scroller

Songs for a Hero - Definitive Edition
Shared: 2D Platformer · Platformer · Puzzle Platformer

Hue
Shared: Puzzle Platformer · Platformer · Side Scroller