Single-player games like VOIDSWARM
Below are 9 single-player Steam games similar to VOIDSWARM, 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 VOIDSWARM page.
Ranked picks
- 1
STARHOME
Single-player alternative to VOIDSWARM — playable solo, no multiplayer required. Shares Strategy with VOIDSWARM.
Take command of the fleet of starships that is the home to the remnants of your civilization. Manage the limited space of each spacecraft and find the balance between living space, production, defenses, and weapons. Explore the galaxy as you seek refuge and safety from an overwhelming threat.
- 2
Cosmic Robots
Single-player alternative to VOIDSWARM — playable solo, no multiplayer required. Shares Action and Strategy with VOIDSWARM.
Defend your planet from waves of robot invaders! Build powerful turrets, upgrade your defenses, and command robot units to fight drones, tanks, and massive bosses. Then send your own forces to attack the enemy planet in this action-packed sci-fi tower defense game.
- 3
Warfactory: Automation RTS
Single-player alternative to VOIDSWARM — playable solo, no multiplayer required. Shares Strategy with VOIDSWARM.
Warfactory is an automation RTS where production defines the war effort. Build assembly lines to forge an army of machines, then feed thousands of units into massive real-time battles where every loss must be replaced by your factory.
- 4
Mutant Tide
Single-player alternative to VOIDSWARM — playable solo, no multiplayer required. Shares Action with VOIDSWARM.
The tide came in and it brought monsters. Carve through relentless swarms of deep sea horrors, forge 20 weapons into over 90 monstrous evolutions, and drag 10 mutated survivors back from the abyss alone or in co-op. A horde survival roguelite where the ocean wants you dead.
- 5
Leviticus
Single-player alternative to VOIDSWARM — playable solo, no multiplayer required. Shares Action with VOIDSWARM.
Leviticus is a bullet hell sci-fi action indie game where you play as a biblically accurate angel sent to guard those made in the image of GOD. you patrol the stars and destroy alien intruders that aren't made in his image. Fight across space, uncover and enforce Heaven’s decree.
- 6
Grimstar: Crystals are the New Oil!
Single-player alternative to VOIDSWARM — playable solo, no multiplayer required. Shares Action and Strategy with VOIDSWARM.
Grimstar is a real-time strategy game with a story-based single-player campaign. Your brother's sudden death has hit you hard, but the laws of the corporation for which he laid down his life dictate that you must take his place until his contract is fulfilled...
- 7
72 Seconds
Single-player alternative to VOIDSWARM — playable solo, no multiplayer required. Shares Action and Strategy with VOIDSWARM.
72 Seconds is a fast-paced isometric action RTS where tactical squad micro meets ARPG progression. Command specialized units, build defenses, upgrade skill trees, and battle hostile alien threats. Adapt to randomized enemy affixes and survive high-stakes campaign permadeath.
- 8
Task Force Admiral - Vol.1: American Carrier Battles
Single-player alternative to VOIDSWARM — playable solo, no multiplayer required. Shares Action and Strategy with VOIDSWARM.
Experience the thrill of leading American aircraft carriers to victory in this innovative full 3D command simulation wargame set in the Pacific in 1942. First-person or God’s eye, you lead your fleet and planes right from the center of the battle.
- 9
Happy Hour Hero
Single-player alternative to VOIDSWARM — playable solo, no multiplayer required.
🥃 Time is short, just like our signature cocktail. Will you make a stir and gain recognition as best bartender in town, or get mixed up and bottle it? 🍸