Games like Killstreak

"Call to Arms" is a tactical shooter game that allows players to experience a cooperative campaign, play user-generated content, and engage in custom battles. The game features a wide range of customization options for the army, and the Deluxe Edition includes bonus content for expanded gameplay. The developers, with a multi-national team, encourage creating games instead of war.

"Running with Rifles" is a top-down tactical shooter with open-world RPG elements, where you start as a soldier and can rise in rank and command. Explore vast landscapes from trenches to snowy valleys, engage in combat with realistic cover system, and use various weapons, support items, and vehicles. Complete side objectives and experience emergent AI as you navigate through the campaign.

"Worms Rumble" is a real-time, fast-paced action game in the beloved "Worms" series. Equip your worm with unique weapons and abilities, and face off against other players in deathmatch and battle royale modes. The game features cross-play across multiple platforms, allowing for a large player base and intense matches.

"Men of War: Assault Squad 2 - Cold War" is a real-time strategy game set in the Cold War era, where players can command U.S. or Soviet forces and complete mission objectives using a variety of units and vehicles. The game offers a dynamic campaign generator for high replayability in both singleplayer and cooperative modes. Players can choose between the U.S. and Soviet Union in this immersive and challenging strategy experience.

"Heroes & Generals" is a free-to-play, MMOFPS game set in WW2, where Germany, the United States, and the Soviet Union battle for global dominance. Players can choose from various roles including infantry, tank crew, fighter pilot, and general, and everything done contributes to the ongoing, persistent online war. This immersive game encourages teamwork and community building with a huge and expanding player base. Players have access to a vast arsenal of weapons and vehicles, ensuring a dynamic and exciting warfare experience.

"Divided We Fall" is a WW2-themed multiplayer game that emphasizes teamwork and strategy. As a commander, you lead a small squad and manage resources, with success hinging on smart positioning, weapon choice, and cooperation with teammates. Choose from PvP or cooperative battles, with up to 120 soldiers in conflicts overseen by up to 15 players per team. Effective teamwork is vital, especially if you're an officer issuing battle plans and allocating weapons to subordinates.

Masked Forces is a fast-paced, multiplayer shooting game. Customize your character and weapons, and engage in combat on various maps with up to 16 players. Choose from game modes such as Team Deathmatch, Free for All, and Zombie Survival. Intense action and strategy are required to come out on top.

Military Conflict: Vietnam is a tactical shooter game set during the Vietnam War. The game features a variety of weapons and vehicles from the era, and allows players to engage in large-scale battles in a variety of environments. Players can choose to fight on either the US or Viet Cong side, and must use strategy and teamwork to complete objectives and emerge victorious.

"Battle of Empires: 1914-1918" is a real-time strategy game set in World War I. Players can choose to lead either the Entente or the Central Powers, commanding massive armies and engaging in large-scale battles. The game features historical accuracy, detailed graphics, and a variety of units and weapons from the era. Multiplayer mode allows for up to 8 players to compete against each other.

PaintBall War is a multiplayer first person shooter. The world's first full-fledged game associated with paintball. Gain experience, earn new ranks, gain new weapons. Good game!