Games like Millennium Conflict
Games like Millennium Conflict include Taur, DG2: Defense Grid 2, Aliens: Dark Descent, Planetary Annihilation: TITANS, and Kingdom Heroes 8. We matched them by the tags players give Millennium Conflict on Steam (Side Scroller, Real Time Tactics, Tower Defense, Real-Time, and RTS): closest matches first, and among equally close ones the better-known games.

Taur
Shared: Tower Defense · Action · Strategy

DG2: Defense Grid 2
Shared: Tower Defense · Action · Strategy

Aliens: Dark Descent
Shared: Real Time Tactics · RTS · Action

Planetary Annihilation: TITANS
Shared: Real Time Tactics · RTS · Strategy

Kingdom Heroes 8
Shared: Real Time Tactics · RTS · Side Scroller

Total War: WARHAMMER III
Shared: Real Time Tactics · RTS · Strategy

Warhammer 40,000: Dawn of War - Anniversary Edition (Classic)
Shared: RTS · Strategy · Real-Time

Creeper World 4
Shared: Real Time Tactics · Tower Defense · RTS

Starship Troopers: Terran Command
Shared: RTS · Strategy · Real-Time

Men of War: Assault Squad 2
Shared: RTS · Strategy · Action

STAR WARS™ Galactic Battlegrounds Saga
Shared: RTS · Action · Strategy

HoloParade
Shared: Side Scroller · Tower Defense · Real Time Tactics

Infested Planet
Shared: Tower Defense · RTS · Action

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

Mindustry
Shared: Tower Defense · RTS · Base Building

Grim Nights
Shared: Tower Defense · Side Scroller · Strategy

Wargame: Red Dragon
Shared: RTS · Strategy · Real Time Tactics

Company of Heroes 2
Shared: RTS · Strategy · Real-Time

Supreme Commander 2
Shared: RTS · Strategy · Real-Time

Until We Die
Shared: Side Scroller · Tower Defense · Strategy

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

Call to Arms
Shared: RTS · Strategy · Action

Sudden Strike 4
Shared: Real Time Tactics · RTS · Strategy

Rusted Warfare - RTS
Shared: RTS · Strategy · Real-Time