Games like PorBor
Games like PorBor include Hollow Knight, Hollow Knight: Silksong, Momodora: Reverie Under The Moonlight, Rain World, and ANIMAL WELL. We matched them by the tags players give PorBor on Steam (Exploration, Metroidvania, 2D Platformer, Action, and Platformer): closest matches first, and among equally close ones the better-known games.

Hollow Knight
Shared: Metroidvania · Platformer · Exploration

Hollow Knight: Silksong
Shared: Metroidvania · Exploration · 2D

Momodora: Reverie Under The Moonlight
Shared: Metroidvania · 2D Platformer · Exploration

Rain World
Shared: Exploration · Platformer · 2D

ANIMAL WELL
Shared: Exploration · Metroidvania · Platformer

Ori and the Will of the Wisps
Shared: Metroidvania · Platformer · Action

Leap Year
Shared: Exploration · 2D Platformer · Metroidvania

Castlevania: Belmont's Curse
Shared: Metroidvania · Action · 2D Platformer

Öoo
Shared: Metroidvania · 2D Platformer · Exploration

Dust: An Elysian Tail
Shared: Metroidvania · Action · Platformer

F.I.S.T.: Forged In Shadow Torch
Shared: Metroidvania · Action · Platformer

The Messenger
Shared: Metroidvania · Platformer · 2D

Cave Story+
Shared: Exploration · Metroidvania · Platformer

Axiom Verge
Shared: Metroidvania · Platformer · Action

Katana ZERO
Shared: Action · Platformer · 2D Platformer

Webbed
Shared: 2D Platformer · Exploration · Platformer

Haiku, the Robot
Shared: Metroidvania · Exploration · Platformer

MIO: Memories in Orbit
Shared: Exploration · Metroidvania · Platformer

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

Prince of Persia The Lost Crown
Shared: Exploration · Metroidvania · 2D Platformer

Constance
Shared: Metroidvania · Platformer · Action

VVVVVV
Shared: 2D Platformer · Platformer · Exploration

UnEpic
Shared: Metroidvania · Action · Platformer

Afterimage
Shared: Metroidvania · 2D Platformer · Exploration