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
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.
- 2
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.
- 3
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.
- 4
Leviticus
Single-player alternative to VOIDSWARM — playable solo, no multiplayer required. Shares Action with VOIDSWARM.
Leviticus is a dark sci-fi action game where you play as an angel sent to guard those made in his image. Tasked with defending humanity, you patrol the stars and destroy alien intruders, beings that were never made in the image of God. Fight across space, uncover and enforce Heaven’s decree.
- 5
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...
- 6
ERA ONE
Single-player alternative to VOIDSWARM — playable solo, no multiplayer required. Shares Strategy with VOIDSWARM.
Era One is an innovative space game that combines elements of real-time strategy, base building, space survival, and tactical battles. Players can create and customize their bases from scratch, construct various types of structures and warships, manage fleets, and engage in tactical space battles.
- 7
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.
- 8
The Scouring
Single-player alternative to VOIDSWARM — playable solo, no multiplayer required. Shares Action and Strategy with VOIDSWARM.
The Scouring is an RTS with fast pace, high attention to detail and next generation experience. Lead humans or orcs in a Classic Mode or use one of powerful Heroes to fight for victory! Play alone or with friends. Use our modding tools to create maps and custom game modes! Join The Scouring!
- 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? 🍸