Top similar games like Isonzo:

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.

Fight on multiple fronts in Holdfast: Nations At War - A multiplayer first and third-person shooter set during the great Napoleonic Era and WW1. Charge into battle with over 150 players per server!

Squad is a tactical FPS that provides authentic combat experiences through teamwork, communication, and realistic combat. It bridges the gap between arcade shooter and military realism with 100-player battles, combined-arms warfare, and base building.

Team up and join the frontline in Squad 44, the most authentic tactical WW2 shooter. Experience ruthless realism with an immense arsenal of faithfully recreated weapons and vehicles across massive WW2 battlefields.

Take to the streets for intense close quarters combat, where a team's survival depends upon securing crucial strongholds and destroying enemy supply in this multiplayer and cooperative Source Engine based experience.

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

Army Troop 2: Modern Guns offers intense old-school online PvP battles with customizable soldiers, weapons, and gear. Engage in dynamic combat across diverse maps, with advanced bot integration for non-stop action. Challenge friends or AI opponents for the ultimate FPS experience.

Battle Cry of Freedom brings brutal real-time first and third-person combat set in the 19th Century America, presenting players with the opportunity to re-fight the American Civil War as either the Union or the Confederates.

Unleash Unreal Engine 5 as this 32 player intense infantry combat unfolds between 4 factions. Each team competes using VOIP and Tactics to secure the objective and extract from the mission area. Free Steam playtests. No Micro-transactions. No P2W. Indie Gaming Wins

Comanche is a modern helicopter shooter set in an alternative future. Fight in the evolving singleplayer campaign, or master your skills in Conflicts missions.

A tactical multiplayer first-person shooter in the Vietnam war era. It will be, what we coined, an “accessible tactical simulation” (ATS) - striking the best possible balance between realism and accessibility,

Command your own troops, man authentic weaponry and take to the sky in deadly warplanes.

BattleBit Remastered is a low-poly, massive multiplayer FPS, supporting 254 players per server. Battle on a near-fully destructible map with various vehicles!

Experience close-quarters battles in iconic WWII settings. Defend the line, storm the beach, torch the enemy, or use a radio to call in fire support. Day of Infamy is a teamwork-oriented shooter that will keep you on your toes and coming back for more with its diverse game modes and authentic arsenal.

Fight in the theatre of war that changed the world forever. Battle alongside your compatriots on some of the most inhospitable environments of the Eastern Front in Red Orchestra: Ostfront 41-45. Red Orchestra places you in the most realistic WWII first-person multi-player combat to date on the PC, allowing the player to fight through...

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.

Also contains all multi-player content from Red Orchestra 2: Heroes of Stalingrad

From one of the developers behind the original Rainbow Six® and Ghost Recon® games, comes a thinking-man's first-person shooter featuring in-depth character and weapon customization. Take your time. Think ahead. Get the job done.

Download AA3 Today and Become a Member of the elite America's Army Team! America's Army fans and new players alike can now experience America's Army 3, the official U.S. Army game.

WW2 Online is a completely player-driven simulated wargame with a first-person tactical and strategic layer. You’ll fight a global war on a single worldwide server capable of holding thousands of players. Unmatched combined arms gameplay on a massive scale, now with built-in voice comms.

Experience true combat gameplay in a massive military sandbox. Deploying a wide variety of single- and multiplayer content, over 20 vehicles and 40 weapons, and limitless opportunities for content creation, this is the PC’s premier military game. Authentic, diverse, open - Arma 3 sends you to war.

Glory to the Heroes set in the Russian-Ukrainian war is an immersive singleplayer and PvPvE FPS with combined arms gameplay, involving many kinds of different military units and vehicles on the battlefield, where the action is happening in the real-world locations of actual battles.

Zero Hour is a tactical FPS with online team-based game play that takes place in a variety of fictional locations interpreted in Bangladesh with Real-life scale & resource management. It brings a grounded, close quarter combat experience to the game.

World War 3 is a free-to-play tactical online multiplayer FPS where the world is your battleground. Outgun the enemy in thrilling, team-based skirmishes with a huge arsenal of weapons, vehicles, gadgets, and drones at your disposal.

World War Next is a low poly multiplayer FPS set during a WW3 conflict, Choose from over 25 countries. Vehicles like tanks, helicopters, boats and armored cars help players get around quickly.

Fight upon the Ravenfield together with your Blue allies! Take down those pesky Reds using helicopters, tanks, guns, and active ragdoll physics!

Join the fight in War Dust VR, the ultimate FPS shooter with immersive VR gameplay. Dominate expansive battlefields with diverse vehicles, exciting mechanics, and strategic control points. Join your team and become a champion of this multiplayer war today!

POLYGON is a tactical multiplayer team 1st person shooter. Using various weapons, you will battle with up to 32 players on large-scale maps. Properly managing your arsenal and skills, you will lead your team to victory!

Over The Top: WWI brings brutal real-time third and first-person combat set in the First World War. Arm yourself with a diverse arsenal, including rifles, artillery, and even tanks, as you navigate the fully destructible battlefields of the Great War.

Valve's WWII Multiplayer Classic - Now available for Mac.