Games like DYING UNDER NIGHTFALL
Games like DYING UNDER NIGHTFALL include Celeste, SANABI, Super Meat Boy, ICEY, and Shovel Knight: Treasure Trove. We matched them by the tags players give DYING UNDER NIGHTFALL on Steam (2D Platformer, Singleplayer, 2D, Adventure, and Action): closest matches first, and among equally close ones the better-known games.

Celeste
Shared: 2D Platformer · Singleplayer · 2D

SANABI
Shared: 2D Platformer · Action · Singleplayer

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

ICEY
Shared: Action · Female Protagonist · Adventure

Shovel Knight: Treasure Trove
Shared: 2D · Platformer · Adventure

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

Planet of Lana
Shared: 2D Platformer · Action · Female Protagonist

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

Rogue Legacy 2
Shared: Arcade · Action · Adventure

Bloodstained: Curse of the Moon
Shared: Action · 2D · Singleplayer

Hollow Knight
Shared: 2D · Singleplayer · Platformer

Momodora: Reverie Under The Moonlight
Shared: 2D Platformer · 2D · Female Protagonist

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

The Vagrant
Shared: 2D · Action · Female Protagonist

Pizza Tower
Shared: 2D Platformer · Singleplayer · Platformer

Tomb Raider Game of the Year
Shared: Adventure · Singleplayer · Action

Downwell
Shared: 2D Platformer · Arcade · Pixel Graphics

Gal Guardians: Demon Purge
Shared: 2D Platformer · Action · Adventure

LIMBO
Shared: 2D · Singleplayer · Adventure

Exit the Gungeon
Shared: Adventure · Action · Arcade

Rogue Legacy
Shared: Singleplayer · Platformer · Action

Dead Cells
Shared: Adventure · 2D · Pixel Graphics

Sonic Origins
Shared: 2D Platformer · Action · Adventure

Dust: An Elysian Tail
Shared: Action · Adventure · 2D