Games like Deathchron
Games like Deathchron include SANABI, Rogue Legacy 2, Broforce, Shovel Knight: Treasure Trove, and Super Bernie World. We matched them by the tags players give Deathchron on Steam (Action, Adventure, Arcade, Platformer, and 2D Platformer): closest matches first, and among equally close ones the better-known games.

SANABI
Shared: Action · Adventure · Pixel Graphics

Rogue Legacy 2
Shared: Arcade · Action · Platformer

Broforce
Shared: Action · Pixel Graphics · Platformer

Shovel Knight: Treasure Trove
Shared: Platformer · Adventure · Pixel Graphics

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

Katana ZERO
Shared: Action · Pixel Graphics · Platformer

Sonic Origins
Shared: Action · Adventure · 2D Platformer

UFO 50
Shared: Action · Arcade · Pixel Graphics

Blasphemous 2
Shared: Adventure · 2D Platformer · Pixel Graphics

Celeste
Shared: Platformer · Pixel Graphics · 2D Platformer

Skul: The Hero Slayer
Shared: Action · Pixel Graphics · Indie

Downwell
Shared: Platformer · Arcade · Pixel Graphics

Exit the Gungeon
Shared: Action · Arcade · Adventure

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

Smilemo
Shared: Action · Adventure · Platformer

Pizza Tower
Shared: 2D Platformer · Platformer · Action

Bloodstained: Curse of the Moon
Shared: Action · Platformer · Pixel Graphics

Kung Fury: Street Rage - Ultimate Edition
Shared: Arcade · Action · Side Scroller

Dungeon Munchies
Shared: Action · Adventure · Pixel Graphics

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

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

Terminator 2D: NO FATE
Shared: Action · Arcade · 2D Platformer

Rogue Legacy
Shared: Platformer · Action · Indie

MO:Astray
Shared: Action · Adventure · Platformer