Games like Front Lines
Games like Front Lines include Squad, War Thunder, Hell Let Loose, Warhammer 40,000: Space Marine 2, and Red Orchestra 2: Heroes of Stalingrad with Rising Storm. We matched them by the tags players give Front Lines on Steam (Twin Stick Shooter, Action-Adventure, World War II, PvE, and Tanks): closest matches first, and among equally close ones the better-known games.

Squad
Shared: Realistic · PvE · Tactical

War Thunder
Shared: Vehicular Combat · World War II · Tanks

Hell Let Loose
Shared: World War II · Realistic · Shooter

Warhammer 40,000: Space Marine 2
Shared: PvE · Action-Adventure · Action

Red Orchestra 2: Heroes of Stalingrad with Rising Storm
Shared: World War II · Realistic · Wargame

Men of War: Assault Squad 2
Shared: World War II · Tactical · Tanks

A Plague Tale: Requiem
Shared: Action-Adventure · Atmospheric · Realistic

Enlisted
Shared: World War II · Action · Vehicular Combat

IRON NEST: Heavy Turret Simulator
Shared: Realistic · Alternate History · Atmospheric

Day of Infamy
Shared: World War II · Realistic · Tactical

Far Cry® 5
Shared: Action-Adventure · Realistic · Shooter

Sprocket
Shared: World War II · Vehicular Combat · PvE

Gray Zone Warfare
Shared: Realistic · Tactical · PvE

OPERATOR
Shared: Realistic · PvE · Tactical

Wolfenstein: The New Order
Shared: World War II · Alternate History · Atmospheric

Wolfenstein: The Old Blood
Shared: World War II · Alternate History · Action

Armored Warfare
Shared: Realistic · Alternate History · Shooter

Gunner, HEAT, PC!
Shared: Tanks · Realistic · Vehicular Combat

Panzer Knights
Shared: World War II · Tanks · Vehicular Combat

Company of Heroes 2
Shared: World War II · Tactical · Tanks

Call to Arms: Panzer Elite
Shared: World War II · Tanks · Action

IL-2 Sturmovik: Battle of Stalingrad
Shared: World War II · Realistic · Tanks

Tank Mechanic Simulator
Shared: World War II · Tanks · Realistic

Zort
Shared: PvE · Action-Adventure · Atmospheric