Single-player games like Zombies and Strangers
Below are 8 single-player Steam games similar to Zombies and Strangers, 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 Zombies and Strangers page.
Ranked picks
- 1

ROIDERS
Single-player alternative to Zombies and Strangers — playable solo, no multiplayer required. Shares Action and Indie with Zombies and Strangers.
Become an asteroid miner and loot your way to supremacy! Fight waves of vicious aliens or battle against your friends.
- 2

Deep Breach
Single-player alternative to Zombies and Strangers — playable solo, no multiplayer required. Shares Action and Indie with Zombies and Strangers.
Deploy orbital defenses, fuse experimental turret technologies, and engineer devastating weapon builds in a tactical sci-fi horde survival roguelike. Break shields, shred armor, and adapt to evolving bio-corrupted swarms alongside a damaged tactical AI.
- 3

Defying Fate
Single-player alternative to Zombies and Strangers — playable solo, no multiplayer required. Shares Action and Indie with Zombies and Strangers.
A top-down bullet hell space shooter that will test your perseverance. Blast and shoot your way through hordes of asteroids, enemy ships and whatever (and whoever) else you'll run into on your journey! Supports local co-op multiplayer over your local network.
- 4

Vaccine Zombies
Single-player alternative to Zombies and Strangers — playable solo, no multiplayer required. Shares Action and Indie with Zombies and Strangers.
You are sent to a Vaccine Zombie colony because you have developed early symptoms of the illness that will soon make you a zombie. You may need to eliminate hundreds of zombies to find the antidote. If successful, your mission will be extended to destroy the aliens that started this.
- 5

Hardpoint
Single-player alternative to Zombies and Strangers — playable solo, no multiplayer required. Shares Action and Indie with Zombies and Strangers.
Take control of a platform with four auto-firing guns, and combine upgrades along a shared skill tree to create unique builds as you face increasingly numerous enemies. Attempt to survive 15 waves with your single life by specialize into classes with additional abilities and bonuses.
- 6

Destroiders
Single-player alternative to Zombies and Strangers — playable solo, no multiplayer required. Shares Action and Indie with Zombies and Strangers.
No nonsense, action packed, 2.5D, Asteroids inspired shooter. Scream around speeding rocks narrowly avoiding an untimely death as you obliterate rocks whilst harvesting their valuable resources. See how far you and your friends can get. Best played with mates but also pretty fun on your own.
- 7

Orbital Invaders
Single-player alternative to Zombies and Strangers — playable solo, no multiplayer required. Shares Action and Indie with Zombies and Strangers.
3D Sci-Fi arcade Shoot'em up game. Destroy asteroids and aliens. Shoot them all!3D arena shooter with multiple worlds. Spaceship simulator and shmup arcade style game.
- 8

USG
Single-player alternative to Zombies and Strangers — playable solo, no multiplayer required. Shares Action and Indie with Zombies and Strangers.
'USG' Is a captivating vertical shoot 'em up featuring hand-drawn animations and a unique art style. Customize your run with multiple weapon upgrades