Games like Surreal Farm
Games like Surreal Farm include Prison Architect, Planet Coaster, Stardew Valley, Slime Rancher 2, and Dyson Sphere Program. We matched them by the tags players give Surreal Farm on Steam (Strategy, Building, Base Building, Farming Sim, and 3D): closest matches first, and among equally close ones the better-known games.

Prison Architect
Shared: Building · Base Building · Strategy

Planet Coaster
Shared: Building · Strategy · Relaxing

Stardew Valley
Shared: Farming Sim · Relaxing · Building

Slime Rancher 2
Shared: Cute · Relaxing · Open World

Dyson Sphere Program
Shared: Base Building · Building · Strategy

Cult of the Lamb
Shared: Base Building · Cute · Building

Manor Lords
Shared: Strategy · Base Building · Building

Placid Plastic Duck Simulator
Shared: Cute · 3D · Relaxing

Thronefall
Shared: Strategy · Base Building · Building

Against the Storm
Shared: Strategy · Base Building · Building

Factorio
Shared: Base Building · Strategy · Building

House Flipper
Shared: Building · Relaxing · Strategy

Mini Motorways
Shared: Strategy · Building · Casual

Global Rescue
Shared: Strategy · Building · 3D

Once Human
Shared: Building · Base Building · Action

Totally Accurate Battle Simulator
Shared: Strategy · Funny · Simulation

Workers & Resources: Soviet Republic
Shared: Strategy · Base Building · Building

Planet Coaster 2
Shared: Strategy · Building · 3D

Forts
Shared: Strategy · Base Building · Building

Evil Genius 2: World Domination
Shared: Strategy · Base Building · Building

Ratopia
Shared: Building · Base Building · Strategy

Empires of the Undergrowth
Shared: Strategy · Base Building · Building

Oxygen Not Included
Shared: Base Building · Building · Strategy

Gas Station Simulator
Shared: Building · Base Building · Simulation