Games like The Wild Age
Games like The Wild Age include Oxygen Not Included, RimWorld, Kingdom Two Crowns, Banished, and They Are Billions. We matched them by the tags players give The Wild Age on Steam (Strategy, Indie, Survival, Colony Sim, and Base Building): closest matches first, and among equally close ones the better-known games.

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

RimWorld
Shared: Strategy · Colony Sim · Survival

Kingdom Two Crowns
Shared: Tower Defense · Strategy · Base Building

Banished
Shared: Strategy · Colony Sim · Survival

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

Frostpunk
Shared: Survival · Strategy · Colony Sim

Dwarf Fortress
Shared: Colony Sim · Strategy · Base Building

This War of Mine
Shared: Survival · Strategy · Singleplayer

Kingdom: New Lands
Shared: Survival · Base Building · Tower Defense

Rise to Ruins
Shared: Strategy · Colony Sim · Survival

Endzone - A World Apart
Shared: Strategy · Survival · Indie

IXION
Shared: Strategy · Survival · Colony Sim

Castle Story
Shared: Strategy · Colony Sim · Survival

Foundation
Shared: Strategy · Simulation · Medieval

Space Haven
Shared: Strategy · Colony Sim · Survival

The Riftbreaker
Shared: Base Building · Survival · Tower Defense

Settlement Survival
Shared: Survival · Colony Sim · Strategy

Going Medieval
Shared: Strategy · Colony Sim · Base Building

Manor Lords
Shared: Strategy · Base Building · Simulation

Prison Architect
Shared: Strategy · Colony Sim · Base Building

Ostriv
Shared: Strategy · Colony Sim · Simulation

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

Becastled
Shared: Strategy · Base Building · Colony Sim

Against the Storm
Shared: Strategy · Base Building · Simulation