Games like Gallipoli
Games like Gallipoli include Arma 3, Holdfast: Nations At War, Squad, WARDOGS, and War of Rights. We matched them by the tags players give Gallipoli on Steam (Simulation, World War I, Military, Historical, and Multiplayer): closest matches first, and among equally close ones the better-known games.

Arma 3
Shared: Military · Simulation · Multiplayer

Holdfast: Nations At War
Shared: Multiplayer · Historical · Military

Squad
Shared: Military · Multiplayer · FPS

WARDOGS
Shared: Military · Multiplayer · FPS

War of Rights
Shared: Historical · Military · Multiplayer

Verdun
Shared: World War I · Shooter · FPS

Arma Reforger
Shared: Simulation · Military · Multiplayer

Hell Let Loose
Shared: Multiplayer · Realistic · Military

Battlefield™ 1
Shared: World War I · Multiplayer · FPS

Squad 44
Shared: Simulation · Military · FPS

Bodycam
Shared: FPS · Multiplayer · Military

Insurgency
Shared: FPS · Multiplayer · Military

Hell Let Loose: Vietnam
Shared: Simulation · Military · Strategy

Insurgency: Sandstorm
Shared: Military · FPS · Realistic

Isonzo
Shared: Simulation · Military · Realistic

Arma 2: Operation Arrowhead
Shared: Simulation · Military · Multiplayer

Call of Duty®
Shared: Multiplayer · FPS · Military

BattleBit Remastered
Shared: Military · Multiplayer · FPS

Battlefield™ V
Shared: Multiplayer · FPS · Military

Beyond The Wire
Shared: World War I · Military · FPS

Battlefield™ 6
Shared: Military · Multiplayer · FPS

GROUND BRANCH
Shared: Military · Simulation · Realistic