Games like Kingdom Ascension
Games like Kingdom Ascension include This War of Mine, Oxygen Not Included, Manor Lords, Farthest Frontier, and Factorio. We matched them by the tags players give Kingdom Ascension on Steam (Strategy, Auto Battler, Base Building, War, and Exploration): closest matches first, and among equally close ones the better-known games.

This War of Mine
Shared: War · Strategy · Survival

Oxygen Not Included
Shared: Base Building · Resource Management · Survival

Manor Lords
Shared: Strategy · Base Building · Resource Management

Farthest Frontier
Shared: Strategy · Resource Management · Base Building

Factorio
Shared: Base Building · Strategy · Resource Management

Frostpunk
Shared: Strategy · Resource Management · Survival

Age of Empires III: Definitive Edition
Shared: Strategy · Base Building · RTS

The Alters
Shared: Base Building · Strategy · Survival

Diplomacy is Not an Option
Shared: Resource Management · Base Building · RTS

Kingdoms and Castles
Shared: Strategy · Resource Management · Base Building

Age of Empires II (Retired)
Shared: Strategy · RTS · Base Building

They Are Billions
Shared: Strategy · Base Building · RTS

Cossacks 3
Shared: Strategy · War · RTS

Against the Storm
Shared: Strategy · Base Building · Resource Management

Becastled
Shared: Strategy · Base Building · War

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

IXION
Shared: Strategy · Base Building · Resource Management

Empires of the Undergrowth
Shared: Strategy · Base Building · Grand Strategy

Crusader Kings III
Shared: Strategy · Medieval · Grand Strategy

Satisfactory
Shared: Base Building · Resource Management · Exploration

Warpips
Shared: Strategy · Auto Battler · War

RimWorld
Shared: Base Building · Strategy · Survival

Age of Mythology: Retold
Shared: Strategy · Base Building · RTS

Norland
Shared: Strategy · Base Building · Resource Management