Games like Dungeon Warfare 3
Games like Dungeon Warfare 3 include Kingdom Two Crowns, Kingdom Rush 5: Alliance TD, People Playground, Kingdom Rush Origins - Tower Defense, and Besiege. We matched them by the tags players give Dungeon Warfare 3 on Steam (Tower Defense, Strategy, Simulation, Physics, and Building): closest matches first, and among equally close ones the better-known games.

Kingdom Two Crowns
Shared: Tower Defense · Building · Strategy

Kingdom Rush 5: Alliance TD
Shared: Tower Defense · Strategy · Singleplayer

People Playground
Shared: Physics · Simulation · Singleplayer

Kingdom Rush Origins - Tower Defense
Shared: Tower Defense · Strategy · Building

Besiege
Shared: Simulation · Physics · Building

Totally Accurate Battle Simulator
Shared: Simulation · Strategy · Physics

The Escapists
Shared: Strategy · Pixel Graphics · Simulation

Kingdom Rush - Tower Defense
Shared: Tower Defense · Strategy · Singleplayer

Dungeon Warfare
Shared: Tower Defense · Strategy · Pixel Graphics

Bridge Constructor Portal
Shared: Strategy · Simulation · Physics

Thronefall
Shared: Tower Defense · Strategy · Medieval

We Who Are About To Die
Shared: Strategy · Simulation · Physics

Mount & Blade II: Bannerlord
Shared: Strategy · Medieval · Simulation

Graveyard Keeper
Shared: Simulation · Pixel Graphics · Building

Kingdom Rush Frontiers - Tower Defense
Shared: Tower Defense · Strategy · Singleplayer

Tavern Master
Shared: Simulation · Building · Strategy

Creeper World 4
Shared: Tower Defense · Building · Strategy

Poly Bridge
Shared: Simulation · Physics · Building

Cities: Skylines
Shared: Simulation · Strategy · Building

Prison Architect
Shared: Simulation · Building · Strategy

Creeper World 3: Arc Eternal
Shared: Tower Defense · Strategy · Simulation

Space Engineers
Shared: Building · Simulation · Physics

Kingdom Rush Vengeance - Tower Defense
Shared: Tower Defense · Strategy · Singleplayer

Kerbal Space Program
Shared: Simulation · Physics · Building