Games like Swarm Fortress
Games like Swarm Fortress include Kingdom Two Crowns, Mindustry, Prison Architect, Kingdom: New Lands, and Oxygen Not Included. We matched them by the tags players give Swarm Fortress on Steam (Tower Defense, Base Building, Strategy, Top-Down Shooter, and Arena Shooter): closest matches first, and among equally close ones the better-known games.
Kingdom Two Crowns
Shared: Tower Defense · Base Building · Strategy
Mindustry
Shared: Base Building · Tower Defense · Strategy
Prison Architect
Shared: Base Building · Strategy · Sandbox
Kingdom: New Lands
Shared: Tower Defense · Base Building · Strategy
Oxygen Not Included
Shared: Base Building · Strategy · Sandbox
Bloons TD 6
Shared: Tower Defense · Strategy · Sandbox
Forts
Shared: Base Building · Strategy · Sandbox
RimWorld
Shared: Base Building · Strategy · Sandbox
Rogue Tower
Shared: Tower Defense · Strategy · Base Building
Thronefall
Shared: Tower Defense · Strategy · Base Building
Factorio
Shared: Base Building · Strategy · Sandbox
The Riftbreaker
Shared: Base Building · Tower Defense · Sandbox
Minimalist Tower Defense
Shared: Tower Defense · Strategy · Base Building
Cluckmech Oasis
Shared: Tower Defense · Strategy · Top-Down Shooter
They Are Billions
Shared: Base Building · Strategy · Tower Defense
Rise to Ruins
Shared: Tower Defense · Strategy · Base Building
Brotato
Shared: Bullet Hell · Roguelike · Arena Shooter
Tower Dominion
Shared: Tower Defense · Base Building · Strategy
Plants vs. Zombies GOTY Edition
Shared: Tower Defense · Strategy · 2D
BALL x PIT
Shared: Bullet Hell · Top-Down Shooter · Roguelike
Creeper World 3: Arc Eternal
Shared: Tower Defense · Strategy · Base Building
Reassembly
Shared: Strategy · Sandbox · Building
Emberward
Shared: Tower Defense · Strategy · Base Building
Necrosmith
Shared: Tower Defense · Strategy · Bullet Hell