Games like 63 Days
Games like 63 Days include Men of War: Assault Squad 2, Call to Arms - Gates of Hell: Ostfront, War Mongrels, Company of Heroes 2, and Shadow Tactics: Blades of the Shogun. We matched them by the tags players give 63 Days on Steam (Strategy, Real Time Tactics, World War II, RTS, and Isometric): closest matches first, and among equally close ones the better-known games.
Men of War: Assault Squad 2
Shared: Strategy · World War II · RTS
Call to Arms - Gates of Hell: Ostfront
Shared: Strategy · World War II · Real Time Tactics
War Mongrels
Shared: Strategy · Real Time Tactics · World War II
Company of Heroes 2
Shared: Strategy · World War II · RTS
Shadow Tactics: Blades of the Shogun
Shared: Strategy · Real Time Tactics · Stealth
Hearts of Iron IV
Shared: Strategy · World War II · Military
Commandos: Origins
Shared: Strategy · Real Time Tactics · RTS
Company of Heroes
Shared: Strategy · World War II · RTS
Sudden Strike 4
Shared: Strategy · Real Time Tactics · RTS
Desperados III
Shared: Strategy · Real Time Tactics · Isometric
Company of Heroes 3
Shared: Strategy · RTS · World War II
Shadow Tactics: Aiko's Choice
Shared: Strategy · Real Time Tactics · Isometric
Men of War: Assault Squad
Shared: Strategy · World War II · RTS
Commandos: Behind Enemy Lines
Shared: Strategy · World War II · RTS
Steel Division 2
Shared: Strategy · World War II · RTS
Wargame: Red Dragon
Shared: Strategy · RTS · Realistic
Total War: THREE KINGDOMS
Shared: Strategy · RTS · Real Time Tactics
Steel Division: Normandy 44
Shared: Strategy · World War II · RTS
Syrian Warfare
Shared: Real Time Tactics · RTS · Realistic
Blitzkrieg 3
Shared: Strategy · World War II · RTS
Men of War II
Shared: World War II · Strategy · RTS
Commandos 2: Men of Courage
Shared: Strategy · World War II · RTS
Total War: WARHAMMER III
Shared: Strategy · RTS · Real Time Tactics
WARNO
Shared: Real Time Tactics · Strategy · RTS