Top similar games like Protocol: Children of War:

Fast-paced old-school military FPS with online PvP, offline PvE, intelligent AI bots, customizable soldiers, and diverse maps. Invite friends to private matches, customize weapons, perks, skins and loadouts, unlock gear, earn killstreaks, and keep one unified Steam Cloud progression.

A fast-paced classic military FPS inspired by old-school online shooters. Battle in online PvP or PvE against intelligent AI bots. Unlock soldiers, weapons, perks, and attachments, earn XP, customize your loadouts, and enjoy full matches with no empty servers.

FPS party game, 8 players compete in a tournament with a multitude of competitive gamemodes ! Solo, duo or team (4v4), prepare to fight in fast and tactical gamemodes. (Versus, Gungame, Battle royal, Dodegball, Runner ...)

Fight through forgotten WWII bunkers and Cold War black sites, battling rival forces to uncover lost esoteric technology buried from history. Every firefight brings you closer to secrets that were never meant to resurface—and powers that could rewrite the modern world.

Experience the thrill of classic arena shooters reborn. Vengeance delivers nonstop, skill-driven combat with fast respawns, chaotic maps, and authentic weapon recoil. Forget microtransactions—just pure, old-school shooting fun. Play fast. Play the past!

Rolling Thunder: Vietnam is an intense first-person shooter set during the Vietnam War. Engage in fierce combat on land, air, and sea with tanks, helicopters, boats, and jets. Master teamwork and communication to dominate chaotic battlefields, where every decision shapes the outcome.

This is a simple and very addictive multiplayer game where you can fight tank battles with your friends, acquaintances and strangers.

Join fast-paced action-packed combat. Play Combat Master -- AAA experience on any hardware. Best-in-class multiplayer gunfight. Next-level extreme performance. Lightning-speed loading time and a whole lot more.

Operation Siege is an online multiplayer tactical FPS based on air combat, ground combat, with a selection of realistic faction-specific weapons and vehicles allow players to build their own loadouts for their preferred tactics. Prepare yourself for that operation.

Warcos is an excellent real-time tactical command shooter game. Choose whom you want to be a SWAT soldier or Cartel member. Win fights, eliminate opponents, earn game money, increase your level and customize your equipment.

One Map is an online shooter where the entire world fights in the same never-ending battle. No lobbies, no waiting, just instant action. The dynamic map adjusts to the player count, ensuring non-stop combat. Survive, compete, and help break the world record for the most players online in a game.

An intense FPV drone warfare simulator with online multiplayer and co-op modes. Take control of modern kamikaze drones in a high-adrenaline combat experience where precision, speed, and tactics decide your success. Play solo or team up with friends to destroy enemy tanks, vehicles, and bases.

Kommando is an online competitive tactical shooter set in fictional but realistic locations from all across the globe. It features a competitive 5v5 FPS experience inspired by tactical shooters of the past and present.

MORTARMEN is a strategic multiplayer PvP first and third person shooter, pitting the New American Coalition versus United Communist Front in a battle for control of Arakousa, a Mediterranean paradise, where soldiers traverse via sliding, rolling, climbing, and HALO drops.

Gear up, soldier, and prepare for the ultimate FPS showdown in Delta Strike!

Contractors Showdown delivers intense VR extraction combat in ExfilZone, now featuring PvE Mode alongside high-stakes PvPvE action. Customize your loadout, complete missions, loot, survive, and fight your way through immersive tactical battles.

Immerse yourself in the classic military shooter experience or obliterate your foes with state-of-the-art, prototype equipment such as plasma rifles or remotely controlled mechs in this dynamic FPS.

Army Troop is an old-school PvP World War 2 online first-person shooter. Reminding you of the good old days World War games.

A Realistic First-Person, 6v6 Tactical Shooter. In an alternate universe where the Soviet Union never fell apart, it looks like the two modern superpowers are starting to get along. Behind the scenes however, the best operatives that NATO and the Warsaw Pact have to offer are going head to head.

We developed this game to test your competitiveness and your skills. If you want to try new challenges, play War Town.

Set in the muddy trenches of WW1, Beyond The Wire is a 50v50 multiplayer FPS that immerses players in the desperate & brutal circumstances of the Great War. Featuring an arsenal of historic weapons, ten massive maps, ten playable factions, era-specific tanks, & a brutal melee combat system.