Games like Voxel Siege
Games like Voxel Siege include Teardown, Forts, Total War: WARHAMMER II, Sid Meier’s Civilization® VI, and Mount & Blade II: Bannerlord. We matched them by the tags players give Voxel Siege on Steam (Action, Base Building, Strategy, Voxel, and Turn-Based Strategy): closest matches first, and among equally close ones the better-known games.

Teardown
Shared: Voxel · Destruction · Physics

Forts
Shared: Base Building · Strategy · Destruction

Total War: WARHAMMER II
Shared: Strategy · Turn-Based Strategy · Action

Sid Meier’s Civilization® VI
Shared: Strategy · Turn-Based Strategy · Multiplayer

Mount & Blade II: Bannerlord
Shared: Strategy · Action · Multiplayer

Warhammer 40,000: Dawn of War III
Shared: Strategy · Action · Base Building

Total War: THREE KINGDOMS
Shared: Strategy · Turn-Based Strategy · Action

ShellShock Live
Shared: Strategy · Action · Multiplayer

Wreckfest
Shared: Destruction · Action · Indie

Your Only Move Is HUSTLE
Shared: Action · Strategy · Turn-Based Strategy

Gang Beasts
Shared: Action · Multiplayer · Physics

Tempest Rising
Shared: Base Building · Strategy · Action

Planetary Annihilation: TITANS
Shared: Strategy · Base Building · Multiplayer

Halo Wars: Definitive Edition
Shared: Strategy · Base Building · Action

7 Days to Die
Shared: Base Building · Voxel · Multiplayer

Total War: WARHAMMER III
Shared: Strategy · Turn-Based Strategy · Action

Command & Conquer Red Alert™ 2 and Yuri’s Revenge™
Shared: Action · Strategy · Base Building

Just Cause™ 3
Shared: Action · Destruction · Multiplayer

Buckshot Roulette
Shared: Strategy · Multiplayer · Indie

8-Bit Armies
Shared: Strategy · Indie · Voxel

XCOM: Enemy Unknown
Shared: Strategy · Turn-Based Strategy · Base Building

Act of Aggression - Reboot Edition
Shared: Strategy · Base Building · Action

Clone Drone in the Danger Zone
Shared: Action · Voxel · Indie

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