Single-player games like SwarmZ
Below are 11 single-player Steam games similar to SwarmZ, 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 SwarmZ page.
Ranked picks
- 1

Culture Warz: Tactics
Single-player alternative to SwarmZ — playable solo, no multiplayer required. Shares Action and Strategy with SwarmZ.
So, here's the deal: a global conspiracy weaponized social media and turned (almost) everyone into a mindless NPC. Yes, those kinds of NPCs. The ones who just repeat the same dialogue loop about awful trends and bad opinions. The vibes are... terrible.
- 2

Ultimate Epic Battle Simulator
Single-player alternative to SwarmZ — playable solo, no multiplayer required. Shares Action and Strategy with SwarmZ.
Here is a sandbox like no other. Create massive battles with absolutely no limits. Want to see 10,000 chickens fight an army of Romans?? Sure, why not. Want to see a company of WW2 U.S soldiers fight 11,000 Medieval soldiers?? There are simply no limits to the carnage you can achieve in UEBS.
- 3

War Trains
Single-player alternative to SwarmZ — playable solo, no multiplayer required. Shares Action and Strategy with SwarmZ.
The world as we knew it has been destroyed by the apocalypse... But the railroads have survived the war. And now you need to survive the post-apocalyptic era with their help.
- 4

Cataclysm Era
Single-player alternative to SwarmZ — playable solo, no multiplayer required. Shares Action and Strategy with SwarmZ.
Build your forces, conquer cities, and unite the wasteland. Ashes&Gunfire merges real-time tactics, fast-paced top-down battles, and deep management systems to let you forge a new order from the world’s remains.
- 5

Cepheus Protocol
Single-player alternative to SwarmZ — playable solo, no multiplayer required. Shares Action and Strategy with SwarmZ.
Cepheus Protocol is an Open World RTS Military Survival Game. Play as the CERC hunting Patient 0, maintain Quarantine camps, fight dangerous mutations & Rogue Civilian Combatants . There’s nobody else coming, it’s up to you now.
- 6

BARRICADEZ
Single-player alternative to SwarmZ — playable solo, no multiplayer required. Shares Strategy and Indie with SwarmZ.
Barricadez is a mix of tower defense and survival game. Take on your care robot and explore the underground, find new blueprints, gather resources and build your defenses and traps to survive through the night against a myriad of zombie-like creatures. Your goal: to defend the defenseless cradle.
- 7

Zombie City Defense 2
Single-player alternative to SwarmZ — playable solo, no multiplayer required. Shares Action and Strategy with SwarmZ.
In a near future, the world has been devastated by a virus turning humanity into zombies. You are Iron Corps, the last defense of civilization traveling the world to find resources, help people and find answers. Will you survive long enough?
- 8

City Defense Z
Single-player alternative to SwarmZ — playable solo, no multiplayer required. Shares Action and Strategy with SwarmZ.
City Defense Z combines base-building and base defense in a roguelite progression loop. Build by day, defend by night, and face a growing zombie threat. Every defeat unlocks permanent upgrades, helping you rebuild smarter and push further each time. See how many days you can last.
- 9

Totally Accurate Battle Simulator
Single-player alternative to SwarmZ — playable solo, no multiplayer required. Shares Strategy and Indie with SwarmZ.
Be the leader of wobblers from ancient lands, spooky places, and fantasy worlds. Watch them fight in simulations made with the wobbliest physics system ever created, make your own wobblers in the unit creator and send your army off to fight your friends in multiplayer.
- 10

Epic Fantasy Battle Simulator
Single-player alternative to SwarmZ — playable solo, no multiplayer required. Shares Action and Strategy with SwarmZ.
Welcome to Epic Fantasy Battle Simulator, the most immersive medieval battle simulator to date! Throw tens of thousands of soldiers into battle, enjoy the show, or take control of one of them to prove your valor! The only limit is your imagination! Or maybe your CPU?
- 11

Sellswords: Ashen Company
Single-player alternative to SwarmZ — playable solo, no multiplayer required. Shares Action and Strategy with SwarmZ.
Sellswords: Ashen Company is a medieval Action RTS. As a captain of a mercenary company, you shall travel the world seeking for contracts, manage your company, and take part in massive battles. All of this in a unique blend between Real Time Strategy and Third Person Melee Combat.