Games like Doomsday.Inc
Games like Doomsday.Inc include Prison Architect, Internet Cafe Simulator 2, RimWorld, Surviving Mars: Relaunched, and Total War: WARHAMMER. We matched them by the tags players give Doomsday.Inc on Steam (Simulation, Strategy, Strategy RPG, Colony Sim, and Exploration): closest matches first, and among equally close ones the better-known games.
Prison Architect
Shared: Simulation · Strategy · Colony Sim
Internet Cafe Simulator 2
Shared: Simulation · Exploration · 3D
RimWorld
Shared: Colony Sim · Strategy · Simulation
Surviving Mars: Relaunched
Shared: Simulation · Strategy · Colony Sim
Total War: WARHAMMER
Shared: Strategy · Simulation · Strategy RPG
Lessaria: Fantasy Kingdom Sim
Shared: Strategy · Simulation · Colony Sim
Offworld Trading Company
Shared: Strategy · Simulation · 3D
Manor Lords
Shared: Strategy · Simulation · Colony Sim
Kingdoms and Castles
Shared: Colony Sim · Simulation · Strategy
SPORE™
Shared: Simulation · Colony Sim · Exploration
IXION
Shared: Strategy · Colony Sim · Simulation
Banished
Shared: Strategy · Simulation · Colony Sim
Stranded: Alien Dawn
Shared: Simulation · Strategy · Colony Sim
Against the Storm
Shared: Simulation · Strategy · Colony Sim
Heroes' Vow: Three Kingdoms
Shared: Simulation · Strategy · Strategy RPG
Planet Coaster
Shared: Simulation · Strategy · Management
Spellcaster University
Shared: Simulation · Colony Sim · Magic
Empires of the Undergrowth
Shared: Simulation · Strategy · Colony Sim
Dwarf Fortress
Shared: Simulation · Colony Sim · Strategy
Planet Coaster 2
Shared: Simulation · Strategy · 3D
Foundation
Shared: Simulation · Strategy · Colony Sim
Frostpunk
Shared: Strategy · Colony Sim · Simulation
Oxygen Not Included
Shared: Colony Sim · Simulation · Strategy
Settlement Survival
Shared: Colony Sim · Simulation · Strategy