Games like Luna Meridian
Games like Luna Meridian include RimWorld, Oxygen Not Included, Space Haven, Prison Architect, and Manor Lords. We matched them by the tags players give Luna Meridian on Steam (Strategy, Colony Sim, Space Sim, Early Access, and Interactive Fiction): closest matches first, and among equally close ones the better-known games.

RimWorld
Shared: Colony Sim · Strategy · Base Building

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

Space Haven
Shared: Colony Sim · Strategy · Base Building

Prison Architect
Shared: Colony Sim · Strategy · Simulation

Manor Lords
Shared: Strategy · Base Building · Simulation

Dwarf Fortress
Shared: Colony Sim · Strategy · Base Building

Against the Storm
Shared: Strategy · Base Building · Simulation

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

Planetbase
Shared: Colony Sim · Strategy · Base Building

Ostriv
Shared: Strategy · Colony Sim · Simulation

Dyson Sphere Program
Shared: Base Building · Simulation · Strategy

Captain of Industry
Shared: Strategy · Base Building · Simulation

Kingdoms and Castles
Shared: Colony Sim · Strategy · Simulation

Norland
Shared: Strategy · Colony Sim · Base Building

Going Medieval
Shared: Colony Sim · Strategy · Base Building

Frostpunk
Shared: Strategy · Colony Sim · Base Building

Infection Free Zone
Shared: Strategy · Base Building · Colony Sim

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

Banished
Shared: Colony Sim · Strategy · Simulation

Kingdoms Reborn
Shared: Colony Sim · Strategy · Base Building

They Are Billions
Shared: Colony Sim · Strategy · Base Building

Songs of Syx
Shared: Colony Sim · Strategy · Base Building

Kerbal Space Program
Shared: Space Sim · Simulation · Science

IXION
Shared: Strategy · Colony Sim · Base Building