Games like Hunter's Seal
Games like Hunter's Seal include Papers, Please, That's not my Neighbor, Death and Taxes, Storyteller, and Galvatein : Adventurers' Guild. We matched them by the tags players give Hunter's Seal on Steam (Simulation, Point & Click, Puzzle, Choices Matter, and 2D): closest matches first, and among equally close ones the better-known games.

Papers, Please
Shared: Simulation · Point & Click · Puzzle

That's not my Neighbor
Shared: Point & Click · Choices Matter · Simulation

Death and Taxes
Shared: Simulation · Choices Matter · Point & Click

Storyteller
Shared: Point & Click · Puzzle · 2D

Galvatein : Adventurers' Guild
Shared: Simulation · Puzzle · Point & Click

There Is No Game: Wrong Dimension
Shared: Point & Click · Puzzle · Indie

Gorogoa
Shared: Puzzle · Point & Click · Indie

The Witcher 3: Wild Hunt — Remastered
Shared: Fantasy · Choices Matter · Atmospheric

OneShot
Shared: Puzzle · Choices Matter · Indie

The Room
Shared: Puzzle · Point & Click · Atmospheric

Potion Craft: Alchemist Simulator
Shared: Simulation · Medieval · 2D

Volcano Princess
Shared: Choices Matter · Simulation · Multiple Endings

Please, Don’t Touch Anything
Shared: Puzzle · Point & Click · 2D

Machinarium
Shared: Point & Click · Puzzle · 2D

Beholder
Shared: Choices Matter · Simulation · Point & Click

Strange Horticulture
Shared: Puzzle · Point & Click · Simulation

Beholder Conductor
Shared: Choices Matter · Point & Click · Simulation

The Dark Eye: Chains of Satinav
Shared: Point & Click · Puzzle · Fantasy

Reigns
Shared: Choices Matter · Medieval · Simulation

Lost in Play
Shared: Point & Click · Puzzle · 2D

Emily is Away <3
Shared: Simulation · Choices Matter · Casual

Rusty Lake Paradise
Shared: Point & Click · Puzzle · Indie

The Dark Eye: Memoria
Shared: Point & Click · Puzzle · 2D

Game Dev Tycoon
Shared: Simulation · 2D · Casual