Games like Chicken_Run
Games like Chicken_Run include SANABI, Pizza Tower, Rogue Legacy 2, Hollow Knight, and Exit the Gungeon. We matched them by the tags players give Chicken_Run on Steam (Action, 2D Platformer, Adventure, Multiple Endings, and Aliens): closest matches first, and among equally close ones the better-known games.

SANABI
Shared: Action · 2D Platformer · Adventure

Pizza Tower
Shared: 2D Platformer · Funny · Indie

Rogue Legacy 2
Shared: Action · Arcade · Adventure

Hollow Knight
Shared: Platformer · Singleplayer · Adventure

Exit the Gungeon
Shared: Action · Adventure · Arcade

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

Dungeon Munchies
Shared: Action · Adventure · Funny

Celeste
Shared: 2D Platformer · Indie · Singleplayer

ICEY
Shared: Action · Adventure · Singleplayer

The Elephant Collection
Shared: Adventure · 2D Platformer · Action

Skul: The Hero Slayer
Shared: Action · Indie · Singleplayer

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

The Henry Stickmin Collection
Shared: Multiple Endings · Funny · Singleplayer

Smilemo
Shared: Action · Adventure · 2D Platformer

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

Thank Goodness You're Here!
Shared: Adventure · Funny · 2D Platformer

Sonic Origins
Shared: Action · 2D Platformer · Adventure

South Park™: The Stick of Truth™
Shared: Adventure · Action · Funny

Iron Snout
Shared: Action · Funny · Singleplayer

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

Planet of Lana
Shared: Action · 2D Platformer · Adventure

Mark of the Ninja
Shared: Action · Adventure · Indie

Himno
Shared: Adventure · 2D Platformer · Singleplayer

Broforce
Shared: Action · 2D · Indie