Games like Warlapse
Games like Warlapse include Company of Heroes 3, Broken Arrow, Sudden Strike 4, WARNO, and Age of History 3. We matched them by the tags players give Warlapse on Steam (Strategy, RTS, Action RTS, Real Time Tactics, and Wargame): closest matches first, and among equally close ones the better-known games.

Company of Heroes 3
Shared: Strategy · RTS · Wargame

Broken Arrow
Shared: Strategy · RTS · Wargame

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

WARNO
Shared: RTS · Strategy · Wargame

Age of History 3
Shared: Strategy · RTS · Wargame

Wargame: Red Dragon
Shared: Strategy · RTS · Wargame

Men of War: Assault Squad 2
Shared: Strategy · RTS · World War II

Call to Arms - Gates of Hell: Ostfront
Shared: Strategy · Real Time Tactics · RTS

Company of Heroes 2
Shared: Strategy · RTS · World War II

Hearts of Iron IV
Shared: Strategy · World War II · RTS

Total War: THREE KINGDOMS
Shared: Strategy · RTS · Real Time Tactics

Door Kickers 2: Task Force North
Shared: Real Time Tactics · Strategy · Top-Down

Steel Division 2
Shared: Strategy · RTS · World War II

Steel Division: Normandy 44
Shared: Strategy · RTS · World War II

Blitzkrieg 3
Shared: Strategy · RTS · Real Time Tactics

Syrian Warfare
Shared: RTS · Real Time Tactics · Wargame

Total War: MEDIEVAL II – Definitive Edition
Shared: Strategy · RTS · Medieval

Kingdom Heroes 8
Shared: RTS · Real Time Tactics · Strategy

Ultimate General: Civil War
Shared: Real Time Tactics · Wargame · RTS

Company of Heroes
Shared: Strategy · RTS · World War II

The Great War: Western Front™
Shared: Strategy · RTS · Real Time Tactics

Master of Command
Shared: Strategy · RTS · Real Time Tactics

Wargame: Airland Battle
Shared: Strategy · RTS · Wargame

Foxhole
Shared: Wargame · Strategy · Military