Games like Harve
Games like Harve include Cities: Skylines, Cities: Skylines II, Planet Zoo, Cookie Clicker, and (the) Gnorp Apologue. We matched them by the tags players give Harve on Steam (Idler, Incremental, City Builder, Agriculture, and Economy): closest matches first, and among equally close ones the better-known games.

Cities: Skylines
Shared: City Builder · Building · Economy

Cities: Skylines II
Shared: City Builder · Building · Economy

Planet Zoo
Shared: City Builder · Building · Nature

Cookie Clicker
Shared: Idler · Incremental · Economy

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

Farthest Frontier
Shared: City Builder · Building · Agriculture

Two Point Museum
Shared: City Builder · Building · Strategy

Planet Coaster 2
Shared: City Builder · Building · Sandbox

Hearth and Hamlet
Shared: Incremental · City Builder · Idler

Plantera
Shared: Idler · Incremental · Agriculture

Prison Architect
Shared: Building · City Builder · Sandbox

Foundation
Shared: City Builder · Sandbox · Strategy

Kingdoms and Castles
Shared: City Builder · Building · Economy

Stardew Valley
Shared: Agriculture · Sandbox · Crafting

Tiny Pasture
Shared: Idler · Incremental · Cute

Banished
Shared: City Builder · Strategy · Sandbox

Planet Coaster
Shared: Building · Sandbox · Economy

Planet Zoo 2
Shared: City Builder · Strategy · Sandbox

Tropico 6
Shared: City Builder · Economy · Strategy

Timberborn
Shared: City Builder · Nature · Building

Jurassic World Evolution
Shared: Building · City Builder · Economy

Manor Lords
Shared: City Builder · Strategy · Building

Town to City
Shared: City Builder · Building · Economy

Tower Wizard
Shared: Idler · Incremental · Strategy