Games like Landnama
Games like Landnama include Frostpunk, Against the Storm, Manor Lords, Oxygen Not Included, and RimWorld. We matched them by the tags players give Landnama on Steam (Roguelite, Survival, Puzzle, City Builder, and Strategy): closest matches first, and among equally close ones the better-known games.

Frostpunk
Shared: Survival · City Builder · Strategy

Against the Storm
Shared: Strategy · City Builder · Base Building

Manor Lords
Shared: City Builder · Strategy · Base Building

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

RimWorld
Shared: Survival · Colony Sim · Strategy

IXION
Shared: Survival · City Builder · Strategy

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

They Are Billions
Shared: Survival · Strategy · Colony Sim

Empires of the Undergrowth
Shared: Strategy · City Builder · Base Building

Going Medieval
Shared: Survival · Colony Sim · Strategy

Dwarf Fortress
Shared: Colony Sim · Strategy · City Builder

Ostriv
Shared: City Builder · Strategy · Colony Sim

Banished
Shared: City Builder · Survival · Strategy

Space Haven
Shared: Survival · Colony Sim · Strategy

Norland
Shared: Strategy · City Builder · Colony Sim

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

Settlement Survival
Shared: City Builder · Survival · Colony Sim

Dawn of Man
Shared: Survival · City Builder · Colony Sim

Farthest Frontier
Shared: City Builder · Strategy · Colony Sim

Frostpunk 2
Shared: Survival · City Builder · Strategy

Endzone - A World Apart
Shared: Survival · City Builder · Strategy

Stacklands
Shared: Survival · Roguelite · City Builder

Land of the Vikings
Shared: City Builder · Survival · Colony Sim

Planetbase
Shared: City Builder · Colony Sim · Survival