Games like SPE:X
Games like SPE:X include Papers, Please, Mini Motorways, Potion Craft: Alchemist Simulator, Game Dev Tycoon, and Tavern Master. We matched them by the tags players give SPE:X on Steam (Indie, Casual, Puzzle, Simulation, and Singleplayer): closest matches first, and among equally close ones the better-known games.

Papers, Please
Shared: Indie · Simulation · Singleplayer

Mini Motorways
Shared: Casual · Simulation · Indie

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

Game Dev Tycoon
Shared: Indie · Simulation · Casual

Tavern Master
Shared: Simulation · Indie · Management

Mini Metro
Shared: Puzzle · Indie · Simulation

Cities: Skylines
Shared: Simulation · Building · Singleplayer

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

911 Operator
Shared: Simulation · Indie · Singleplayer

House Flipper
Shared: Simulation · Singleplayer · Casual

Two Point Hospital
Shared: Simulation · Indie · Singleplayer

Startup Company
Shared: Simulation · Indie · Casual

Gas Station Simulator
Shared: Simulation · Casual · Singleplayer

Poly Bridge
Shared: Puzzle · Simulation · Indie

Cookie Clicker
Shared: Casual · Indie · Management

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

Unpacking
Shared: Casual · Puzzle · Indie

Supermarket Simulator
Shared: Simulation · Singleplayer · Management

Gorogoa
Shared: Indie · Puzzle · Casual

Papa's Freezeria Deluxe
Shared: Casual · Simulation · Time Management

PC Building Simulator
Shared: Simulation · Building · Management

Youtubers Life
Shared: Casual · Singleplayer · Simulation

shapez 2 - Factory
Shared: Simulation · Puzzle · Building

Human Resource Machine
Shared: Indie · Puzzle · Casual