Games like Demon Lord Tamer
Games like Demon Lord Tamer include Papers, Please, Game Dev Tycoon, Plague Inc: Evolved, Mountain, and That's not my Neighbor. We matched them by the tags players give Demon Lord Tamer on Steam (Casual, Simulation, Platformer, Point & Click, and 2D Platformer): closest matches first, and among equally close ones the better-known games.

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

Game Dev Tycoon
Shared: Simulation · Casual · Indie

Plague Inc: Evolved
Shared: Simulation · Casual · Singleplayer

Mountain
Shared: Simulation · Casual · Indie

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

Potion Craft: Alchemist Simulator
Shared: Simulation · Singleplayer · Casual

Unpacking
Shared: Casual · Simulation · Singleplayer

Click the Button
Shared: Casual · Simulation · Indie

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

Passpartout: The Starving Artist
Shared: Casual · Simulation · Singleplayer

House Flipper
Shared: Simulation · Singleplayer · Casual

Master Of Pottery
Shared: Casual · Simulation · Indie

911 Operator
Shared: Simulation · Casual · Singleplayer

Mini Motorways
Shared: Simulation · Casual · Indie

Pizza Tower
Shared: 2D Platformer · Platformer · Indie

Brawlhalla
Shared: Casual · 2D Platformer · Platformer

Chained Together
Shared: Casual · Platformer · Simulation

Paralives
Shared: Simulation · Indie · Casual

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

Celeste
Shared: Platformer · 2D Platformer · Indie

Streamer Life Simulator
Shared: Simulation · Casual · Singleplayer

Braid
Shared: Platformer · 2D Platformer · Indie

Startup Company
Shared: Simulation · Casual · Indie

Chinese Parents
Shared: Simulation · Casual · Indie