WWI

Iron Storm

Iron Storm is set in a fictional alternate history where World War I never ended and has been going on for 50 years. The game features a blend of familiar World War I elements like trench warfare alongside more advanced technology like helicopters.

The game was later updated as World War Zero featuring gameplay changes and improved widescreen support.

Battlefield 1

Battlefield 1 is a first-person shooter video game developed by EA DICE and published by Electronic Arts. Despite its name, Battlefield 1 is the fifteenth installment in the Battlefield series, and the first main entry in the series since Battlefield 4.

Verdun

Verdun is a squad-based multiplayer FPS in a realistic WW1 setting. The merciless trench warfare offers a unique battlefield for tactical squad play in the realistic Frontlines game mode, and raw gameplay in the rifle-deathmatch.

War Thunder

The game is set to contain aircraft, armored vehicles, and ships from the pre-World War II era to the early Korean War era. Some maps in the Historical Game mode are similar to real life WW2 conflicts. i.e Pearl Harbor.
The average size of maps in the game, currently range from approx, 100km x 100km to 200km x 200km. Although the engine powering the game is likely to archive larger map sizes in the future.

World of Warplanes

World of Warplanes is a massive multiplayer real time game in the genre of arcade flight simulator in the historical setting of World War II, announced by Wargaming.net on June 7, 2011 in Los Angeles at Electronic Entertainment Expo. The game is now at the stage of global alpha testing.

Toy Soldiers

Toy Soldiers is an action and strategy video game by Signal Studios.

Players control one of two armies of miniature toy soldiers on a World War I model diorama with wooden and plastic landscapes. The diorama is set in various locations, such as a child's bedroom, library and lounge, and objects such as dressers and reading lamps are at times visible in the background.

The game features 50 different controllable units including machine guns, mortars and tanks, with the fixed emplacements being upgradable to more powerful versions.

Rise of Flight: The First Great Air War

Rise of Flight is a flight simulator depicting aerial warfare over the Western Front during the First World War. The time line of Rise of Flight currently covers the years from 1916-1918. The included game map covers over 120,000 km² of the Western Front.
Some well-known flyable aircraft are included in the base game (Albatros D.Va, Fokker D.VII, Nieuport 28.C1, SPAD 13.C1), with additional add-on aircraft from 1916 to 1918 available for purchase online.