Games like Fill Up The Hole
Games like Fill Up The Hole include Prison Architect, Oxygen Not Included, Manor Lords, Frostpunk, and Kingdoms and Castles. We matched them by the tags players give Fill Up The Hole on Steam (Incremental, Idler, City Builder, Colony Sim, and Building): closest matches first, and among equally close ones the better-known games.

Prison Architect
Shared: Building · Colony Sim · Base Building

Oxygen Not Included
Shared: Colony Sim · Base Building · Building

Manor Lords
Shared: City Builder · Strategy · Base Building

Frostpunk
Shared: City Builder · Colony Sim · Building

Kingdoms and Castles
Shared: City Builder · Colony Sim · Management

Cookie Clicker
Shared: Incremental · Idler · Management

RimWorld
Shared: Colony Sim · Base Building · Management

Against the Storm
Shared: City Builder · Building · Strategy

Cities: Skylines
Shared: City Builder · Building · Management

Dwarf Fortress
Shared: Colony Sim · City Builder · Base Building

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

Empires of the Undergrowth
Shared: City Builder · Colony Sim · Base Building

Banished
Shared: City Builder · Colony Sim · Strategy

Norland
Shared: City Builder · Colony Sim · Strategy

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

Ostriv
Shared: City Builder · Colony Sim · Strategy

Hearth and Hamlet
Shared: Incremental · City Builder · Idler

Foundation
Shared: City Builder · Management · Simulation

Timberborn
Shared: City Builder · Colony Sim · Building

Settlement Survival
Shared: City Builder · Colony Sim · Building

Tower Wizard
Shared: Incremental · Idler · Strategy

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

Space Haven
Shared: Colony Sim · Base Building · Management

Kingdoms Reborn
Shared: City Builder · Colony Sim · Management