Games like Operation: Harsh Doorstop

Polygon is a massively multiplayer, tactical first-person shooter set in an open world warfare scene, allowing up to 32 players in large-scale battles. Team up with friends in intense PvP matches, with a customizable weapon arsenal based on real prototypes. Experience teamplay with up to 16 players, utilizing various weapons and skills to lead your team to victory.

Powerful nations are dispatching mercenaries to secure Q-On at contaminated sites, off limits to most men. Swarming around the sites like a flock of crows, they begin their own battles.

Bodycam is an ultra-realistic multiplayer FPS that immerses players in intense close-quarters combat through a unique body-camera perspective. This view forces tactical decision-making, sharp reflexes, and teamwork as every shot and movement counts. Photorealistic visuals and varied modes amplify the authentic, high-stakes experience.

"Zero Hour" is a real-time strategy game that takes place in a post-apocalyptic world. Players must build and manage their base, gather resources, and command their troops to defeat the enemy. The game features tactical combat, destructible environments, and a variety of units and structures to build and upgrade.

"World War 3" is a multiplayer tactical first-person shooter set in a modern global conflict. Engage in thrilling skirmishes across real-world locations, utilizing a wide range of weapons, vehicles, drones, and tactical strikes. Fight through stunningly detailed maps, with every shot and decision potentially crucial to your team's victory. Customize your loadout and collaborate with your team to outgun and outflank your enemies.

"Warbox" is a single-player shooter game, previously supported on itch.io but now updated and available on Steam, offering a sandbox experience in a warzone with customizable battlefields, various tools, and humor. The game allows players to control soldiers and vehicles, with the latest update adding the 6B43 Armored Vest. Despite some bugs, Warbox offers good gameplay and graphics, with a Discord server for support and updates.

"OPERATOR is a single-player and multiplayer co-op role-playing game, offering a tactical shooter experience with realistic weapon handling and environmental interactions. The game encourages teamwork, as going solo against enemies can be deadly. Despite its awesome graphics and humor, OPERATOR is missing some optimization and has several bugs."

"Arma Reforger is a Cold War combat game set on the islands of Everon and Arland, powered by the Enfusion engine. The Deluxe Edition includes the base game, a detailed map, original soundtrack, exclusive wallpapers, and the Game Master real-time editor. Fight in the Conflict multiplayer mode or create your own scenarios."

Beyond the Wire is a large-scale multiplayer first-person shooter set in the Western Front of the Great War. With up to 100 players in a battle, coordination and communication are key as you fight alongside your squad in intense, tactical combat. Utilize period-appropriate firearms and close-quarters melee combat to overcome the enemy and survive the brutality of the front lines.

"War Dust VR" is a large-scale multiplayer VR shooter with 32v32 battles, featuring diverse landscapes and dynamic day-night environments. Engage in immersive tactical warfare with customizable loadouts and conquest-style gameplay, as you capture control points and dominate the battlefield. This community-driven game also offers a variety of player-created maps, with continuous development guided by its active player base.