Single-player games like IS Defense
Below are 17 single-player Steam games similar to IS Defense, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like IS Defense page.
Ranked picks
- 1
Heavy Fire: Afghanistan
Single-player alternative to IS Defense — playable solo, no multiplayer required. Shares Action with IS Defense.
Heavy Fire: Afghanistan is a super fast playing on-rails shooter set in modern-day Afghanistan featuring tanks, assault vehicles and helicopters. The game offers 60 awards, one machine co-op for up to four, Steam Cloud, Leaderboards and Trading Cards.
- 2
Heavy Fire: Shattered Spear
Single-player alternative to IS Defense — playable solo, no multiplayer required. Shares Action with IS Defense.
Iran has nuclear weapons and one is sitting on a fully fueled ICBM going through its final launch checklist. Fight your way through Afghanistan, make it over the Iranian border, infiltrate the missile base and permanently stop the countdown in this super fast, high intensity on-rails shooter.
- 3
Crisis Brigade 2 reloaded
Single-player alternative to IS Defense — playable solo, no multiplayer required. Shares Action and Indie with IS Defense.
Crisis Brigade 2 reloaded is about covering, pointing and shooting, fast-paced pure action. Intense shootouts, powerful weapons, challenging levels, fierce enemies... Like the 90's classic arcade machines, but with the immersion that Virtual Reality is capable of.
- 4
Blue Estate The Game
Single-player alternative to IS Defense — playable solo, no multiplayer required. Shares Action with IS Defense.
Blue Estate is a black-humoured and corrosive rail shooter, adapted from the critically acclaimed and Eisner Award nominated graphic novel, Blue Estate by Viktor Kalvachev!
- 5
BeachHead
Single-player alternative to IS Defense — playable solo, no multiplayer required. Shares Action and Indie with IS Defense.
BEACHHEAD - IT'S NOT JUST A GAME, IT'S THE FUTURE OF REALITY. BeachHead 2000 changed the gaming paradigm by bringing a new gaming experience to life. 20 + years later, the original creators are doing it again. Try the new BEACHHEAD experience (VR or Desktop) and see for yourself.
- 6
Pistol Whip
Single-player alternative to IS Defense — playable solo, no multiplayer required. Shares Action and Indie with IS Defense.
Enter: the ultimate action hero. Pistol Whip is a physical action-rhythm game where film-inspired gunplay and blood-pumping beats collide. Blast, duck and dodge your way through fever dream Scenes, build unique rhythms in a ballet of bullets and claim glory on the leaderboards. Includes mod support!
- 7
Arma 3
Single-player alternative to IS Defense — playable solo, no multiplayer required. Shares Action with IS Defense.
Experience true combat gameplay in a massive military sandbox. Deploy with a wide variety of single- and multiplayer content, a massive arsenal of modern weapons and vehicles, and limitless opportunities for content creation. Authentic, diverse, open - Arma 3 sends you to war.
- 8
Sniper Elite 4
Single-player alternative to IS Defense — playable solo, no multiplayer required. Shares Action with IS Defense.
Discover unrivalled sniping freedom in the largest and most advanced World War 2 shooter ever built. Experience tactical third-person combat, gameplay choice and epic longshots across gigantic levels as you liberate wartime Italy from the grip of Fascism.
- 9
Medal of Honor™
Single-player alternative to IS Defense — playable solo, no multiplayer required. Shares Action with IS Defense.
Fight Today's War: Elite Special Forces in a gritty combat campaign using the surgical tactics of Tier 1 Operators combined with the sledgehammer force of Army Rangers.
- 10
Medal of Honor: Airborne
Single-player alternative to IS Defense — playable solo, no multiplayer required. Shares Action with IS Defense.
Step into the boots of Boyd Travers, Private First Class of the “All-American” 82nd Airborne Division, and revolutionize the way the war is fought. From a rocky beginning in Sicily to war winning triumphs in the heart of Germany, fight the epic WWII battles that turned America’s first paratroopers into combat legends.
- 11
Hatred
Single-player alternative to IS Defense — playable solo, no multiplayer required. Shares Action and Indie with IS Defense.
Hatred is a violent twin-stick shooter, in which you take the role of The Antagonist fighting against all of humanity.
- 12
Call of Duty®: Warzone™
Single-player alternative to IS Defense — playable solo, no multiplayer required. Shares Action with IS Defense.
Welcome to Call of Duty®: Warzone™, the massive free-to-play combat arena. Experience thrilling modes & new gameplay features across Endgame (for a limited time), Battle Royale, Black Ops Royale, and Resurgence.
- 13
Ancestors Legacy
Single-player alternative to IS Defense — playable solo, no multiplayer required.
Ancestors Legacy is a squad-based real time strategy with a strong focus on tactics. Inspired by medieval European history, it brings to life four different nations and their conflicts, usually solved by war.
- 14
War Mongrels
Single-player alternative to IS Defense — playable solo, no multiplayer required. Shares Action with IS Defense.
War Mongrels is an isometric real-time tactics game that takes place on the eastern front of World War II. Dynamic and tactical gameplay with stealth elements, tightly packed into a dark, fascinating story! Play on your own or in online co-op (PC).
- 15
63 Days
Single-player alternative to IS Defense — playable solo, no multiplayer required. Shares Action with IS Defense.
Coming of age as a part of the first generation born free, WWII stripped me of my family, home, and future. Now I'm left with only one choice: to get my revenge and independence, or die trying. The odds are against us: will our tactics, stealth and teamwork be enough?
- 16
Ancestors Legacy Free Peasant Edition
Single-player alternative to IS Defense — playable solo, no multiplayer required.
Ancestors Legacy Free Peasant Edition represents a part of the full product. Get a taste of medieval battles in this free version of the acclaimed historical RTS! 4 SP missions and 17 MP maps are now available to everyone. Challenge friends, AI, or take part in our League that will start in March!
- 17
Stormbinders
Single-player alternative to IS Defense — playable solo, no multiplayer required.
Stormbinders is a turn-based strategy game with a unique fantasy setting. Classic tactical gameplay meets a new level of strategic depth in a battle for survival against chaotic magic storms.