Games like Redhelm Dynasty
Games like Redhelm Dynasty include Hollow Knight, Anomaly Agent, SANABI, Nine Sols, and Thank Goodness You're Here!. We matched them by the tags players give Redhelm Dynasty on Steam (Adventure, Alternate History, Historical, 2D Platformer, and Side Scroller): closest matches first, and among equally close ones the better-known games.

Hollow Knight
Shared: Platformer · Adventure · Souls-like

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

SANABI
Shared: Adventure · 2D Platformer · Action

Nine Sols
Shared: Platformer · Souls-like · Hand-drawn

Thank Goodness You're Here!
Shared: Adventure · 2D Platformer · Hand-drawn

Eastern Exorcist
Shared: Adventure · Side Scroller · Action

Blasphemous 2
Shared: Adventure · 2D Platformer · Side Scroller

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

Hollow Knight: Silksong
Shared: Adventure · Platformer · Souls-like

Pizza Tower
Shared: 2D Platformer · Platformer · Cartoony

Apotheon
Shared: Adventure · Platformer · Historical

Shovel Knight: Treasure Trove
Shared: Adventure · Platformer · Side Scroller

Rogue Legacy 2
Shared: Adventure · Platformer · Action

Kingdom Come: Deliverance II
Shared: Medieval · Adventure · Historical

Valiant Hearts: The Great War™ / Soldats Inconnus : Mémoires de la Grande Guerre™
Shared: Historical · Adventure · Side Scroller

Smilemo
Shared: Adventure · 2D Platformer · Platformer

Laughing to Die
Shared: Adventure · 2D Platformer · Platformer

Afterimage
Shared: 2D Platformer · Side Scroller · Adventure

Kingdom Come: Deliverance
Shared: Medieval · Historical · Adventure

Celeste
Shared: 2D Platformer · Platformer · Adventure

Dead Cells
Shared: Adventure · Souls-like · Platformer

DEVIATOR
Shared: 2D Platformer · Adventure · Platformer

Gal Guardians: Demon Purge
Shared: Adventure · 2D Platformer · Side Scroller

Deadlight
Shared: Adventure · Platformer · Side Scroller