Games like OUTWORKS
Games like OUTWORKS include Prison Architect, Garry's Mod, Cookie Clicker, House Flipper, and Cities: Skylines. We matched them by the tags players give OUTWORKS on Steam (Tower Defense, Casual, Simulation, Idler, and Building): closest matches first, and among equally close ones the better-known games.

Prison Architect
Shared: Simulation · Building · Base Building

Garry's Mod
Shared: Casual · Building · Sandbox

Cookie Clicker
Shared: Casual · Idler · Incremental

House Flipper
Shared: Simulation · Building · Casual

Cities: Skylines
Shared: Simulation · Building · Sandbox

Bloons TD 6
Shared: Tower Defense · Casual · Strategy

Two Point Museum
Shared: Casual · Simulation · Building

Dyson Sphere Program
Shared: Building · Base Building · Simulation

Space Engineers
Shared: Building · Simulation · Sandbox

Nodebuster
Shared: Casual · Idler · Simulation

Manor Lords
Shared: Simulation · Base Building · Building

Factorio
Shared: Base Building · Sandbox · Building

The Riftbreaker
Shared: Tower Defense · Base Building · Building

Kingdom Two Crowns
Shared: Tower Defense · Building · Base Building

Oxygen Not Included
Shared: Base Building · Building · Simulation

Planet Coaster
Shared: Simulation · Building · Sandbox

Two Point Hospital
Shared: Simulation · Building · Casual

Zero Stress King: Idle Defense
Shared: Tower Defense · Idler · Casual

Rogue Tower
Shared: Tower Defense · Casual · Base Building

Hydroneer
Shared: Base Building · Building · Sandbox

Hearth and Hamlet
Shared: Casual · Base Building · Idler

Beltmatic
Shared: Casual · Simulation · Base Building

Cell to Singularity - Evolution Never Ends
Shared: Simulation · Casual · Idler

shapez 2 - Factory
Shared: Building · Simulation · Base Building