Games like Operation: Michael (World War I) Campaign
Games like Operation: Michael (World War I) Campaign include SMITE®, War Thunder, Aimlabs, Plague Inc: Evolved, and Once Human. We matched them by the tags players give Operation: Michael (World War I) Campaign on Steam (Action, Free to Play, Indie, Casual, and Simulation): closest matches first, and among equally close ones the better-known games.

SMITE®
Shared: Free to Play · Action · Strategy

War Thunder
Shared: Free to Play · Action · Simulation

Aimlabs
Shared: Free to Play · Action · Simulation

Plague Inc: Evolved
Shared: Indie · Simulation · Strategy

Once Human
Shared: Free to Play · Action · Simulation

Game Dev Tycoon
Shared: Indie · Simulation · Casual

Marvel Rivals
Shared: Free to Play · Action · Casual

Idle Champions of the Forgotten Realms
Shared: Free to Play · Strategy · Indie

Pixel Puzzles: UndeadZ
Shared: Casual · Indie · Action

Brawlhalla
Shared: Free to Play · Casual · Action

Achievement Clicker
Shared: Casual · Indie · Action

Where Winds Meet
Shared: Free to Play · Indie · Casual

Total Tank Simulator
Shared: Action · Simulation · Strategy

Mini Motorways
Shared: Casual · Simulation · Strategy

Plebby Quest: The Crusades
Shared: Indie · Casual · Strategy

Ultimate Custom Night
Shared: Free to Play · Strategy · Indie

Russian Life Simulator
Shared: Simulation · Action · Indie

Boid
Shared: Free to Play · Action · Indie

Pixel Puzzles: Japan
Shared: Indie · Casual · Simulation

911 Operator
Shared: Simulation · Indie · Strategy

GrandChase
Shared: Action · Free to Play · Casual

Ultimate Epic Battle Simulator 2
Shared: Action · Simulation · Strategy

RADical ROACH Remastered
Shared: Action · Indie · Casual

Shieldwall
Shared: Action · Simulation · Strategy