Games like Space Guild
Games like Space Guild include Cookie Clicker, Shop Titans, (the) Gnorp Apologue, Factory Town Idle, and Cities: Skylines. We matched them by the tags players give Space Guild on Steam (Economy, Incremental, Idler, Crafting, and Automation): closest matches first, and among equally close ones the better-known games.

Cookie Clicker
Shared: Incremental · Idler · Economy

Shop Titans
Shared: Idler · Crafting · Economy

(the) Gnorp Apologue
Shared: Incremental · Idler · Economy

Factory Town Idle
Shared: Incremental · Idler · Economy

Cities: Skylines
Shared: Economy · City Builder · Strategy

Captain of Industry
Shared: Automation · Economy · Strategy

Kingdoms and Castles
Shared: City Builder · Economy · Strategy

Dragon Cliff
Shared: Idler · Incremental · RPG

IDLE BOSS RUSH
Shared: Incremental · Idler · Economy

Idle Champions of the Forgotten Realms
Shared: Idler · Incremental · Strategy

Fortune Mill
Shared: Incremental · Idler · Economy

Tower Wizard
Shared: Incremental · Idler · Strategy

Factorio
Shared: Automation · Crafting · Strategy

Another Brick in The Mall
Shared: Automation · Economy · Shop Keeper

Banished
Shared: Strategy · City Builder · Colony Sim

Idle Colony
Shared: Incremental · Economy · Idler

Factory Town
Shared: Automation · Economy · Crafting

Incredicer
Shared: Incremental · Idler · Strategy

Startup Company
Shared: Economy · Strategy · Crafting

Banana
Shared: Incremental · Idler · Casual

Rusty's Retirement
Shared: Idler · Automation · Economy

Kubifaktorium
Shared: Automation · Economy · Crafting

Nodebuster
Shared: Incremental · Idler · Strategy

Kiwi Clicker - Juiced Up
Shared: Incremental · Idler · Economy