Games like Eclipse --- Defending the motherland
Games like Eclipse --- Defending the motherland include Apex Legends™, Halo Infinite, Delta Force, Paladins®, and Destiny 2. We matched them by the tags players give Eclipse --- Defending the motherland on Steam (Free to Play, Adventure, FPS, Multiplayer, and Fantasy): closest matches first, and among equally close ones the better-known games.

Apex Legends™
Shared: Free to Play · Multiplayer · FPS

Halo Infinite
Shared: Free to Play · FPS · Multiplayer

Delta Force
Shared: Free to Play · FPS · Multiplayer

Paladins®
Shared: Free to Play · FPS · Multiplayer

Destiny 2
Shared: Free to Play · Multiplayer · FPS

FragPunk
Shared: Free to Play · FPS · Multiplayer

Call of Duty®: Warzone™
Shared: Free to Play · FPS · Multiplayer

Where Winds Meet
Shared: Free to Play · Multiplayer · Adventure

Call of Duty®: Black Ops III
Shared: Multiplayer · FPS · First-Person

THE FINALS
Shared: Free to Play · FPS · Multiplayer

Half-Life 2
Shared: FPS · Sci-fi · Adventure

Half-Life
Shared: FPS · Multiplayer · Sci-fi

Dark Deception
Shared: Free to Play · Multiplayer · First-Person

BioShock Infinite
Shared: FPS · Adventure · First-Person

Titanfall® 2
Shared: FPS · Multiplayer · Sci-fi

Arena Breakout: Infinite
Shared: Free to Play · FPS · Multiplayer

Halo: The Master Chief Collection
Shared: FPS · Multiplayer · Sci-fi

Half-Life: Alyx
Shared: FPS · VR · Sci-fi

PUBG: BATTLEGROUNDS
Shared: Multiplayer · FPS · Adventure

Granny
Shared: Multiplayer · Survival Horror · Adventure

Far Cry 3
Shared: FPS · Adventure · Multiplayer

Black Mesa
Shared: FPS · Sci-fi · First-Person

Marvel Rivals
Shared: Free to Play · Multiplayer · Adventure

Aimlabs
Shared: Free to Play · FPS · First-Person