Games like Citadelic
Games like Citadelic include Thronefall, Rogue Tower, They Are Billions, Kingdom Two Crowns, and Kingdom: New Lands. We matched them by the tags players give Citadelic on Steam (Tower Defense, Base Building, Roguelite, Survival, and Relaxing): closest matches first, and among equally close ones the better-known games.
Thronefall
Shared: Tower Defense · Strategy · Base Building
Rogue Tower
Shared: Tower Defense · Strategy · Base Building
They Are Billions
Shared: Base Building · Tower Defense · Survival
Kingdom Two Crowns
Shared: Tower Defense · Base Building · City Builder
Kingdom: New Lands
Shared: Tower Defense · Base Building · Survival
The King is Watching
Shared: Base Building · Tower Defense · Strategy
Bee Island
Shared: Tower Defense · Base Building · Strategy
Tower Dominion
Shared: Tower Defense · Base Building · Strategy
Nordhold
Shared: Tower Defense · Roguelite · Strategy
The Riftbreaker
Shared: Base Building · Tower Defense · Survival
Infection Free Zone
Shared: Base Building · Strategy · Survival
Frostpunk
Shared: Survival · Strategy · City Builder
Emberward
Shared: Tower Defense · Roguelite · Base Building
Rise to Ruins
Shared: Tower Defense · Survival · Base Building
Drill Core
Shared: Tower Defense · Roguelite · Strategy
ISLANDERS
Shared: Relaxing · Strategy · City Builder
Cluckmech Oasis
Shared: Tower Defense · Strategy · Roguelite
Monsters are Coming!
Shared: Tower Defense · Roguelite · Action
RimWorld
Shared: Base Building · Survival · Strategy
Megabonk
Shared: Roguelite · Survival · Roguelike
Tower Factory
Shared: Tower Defense · Roguelite · Strategy
Against the Storm
Shared: Base Building · Strategy · City Builder
Border Pioneer
Shared: Tower Defense · Base Building · Strategy
Bad North: Jotunn Edition
Shared: Tower Defense · Survival · Minimalist