Single-player games like Castle Battles
Below are 12 single-player Steam games similar to Castle Battles, 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 Castle Battles page.
Ranked picks
- 1
Firmament Wars
Single-player alternative to Castle Battles — playable solo, no multiplayer required. Shares Strategy and Indie with Castle Battles.
Firmament Wars is a multiplayer strategy game with fast-paced real-time warfare. Build a wall, fire cannons, and launch missiles on your way to victory! Select from 7 government types and compete with up to 8 players on a variety of maps! Go forth and conquer!
- 2
Sins of a Solar Empire: Trinity®
Single-player alternative to Castle Battles — playable solo, no multiplayer required. Shares Strategy and Indie with Castle Battles.
In Sins of a Solar Empire: Trinity, you are the leader of a civilization embroiled in a galactic war, fighting for the survival of your entire race against relentless foes.
- 3
SPACECOM
Single-player alternative to Castle Battles — playable solo, no multiplayer required. Shares Strategy and Indie with Castle Battles.
SPACECOM – a strategic-to-the-bone, starfleet command game in which deception, smart movement, and choices to battle decide victory or defeat.
- 4
BANNERMEN
Single-player alternative to Castle Battles — playable solo, no multiplayer required. Shares Action and Strategy with Castle Battles.
A singleplayer fast-paced classic RTS game in which you take on the role of a fallen lord on his journey back to become one of the mightiest in the medieval realm of Valtoria.
- 5
Galactic Dominion
Single-player alternative to Castle Battles — playable solo, no multiplayer required. Shares Action and Strategy with Castle Battles.
Galactic Dominion is a fast paced 4x space strategy game. Explore the stars, perform research, manage your colonies, build a fleet, defend your systems, and conquer the galaxy. Play through an epic story driven campaign or alternatively customize your games for countless re-playability!
- 6
Drone Swarm
Single-player alternative to Castle Battles — playable solo, no multiplayer required. Shares Strategy and Indie with Castle Battles.
Drone Swarm is a very unique take on tactical games. Control 32,000 drones in quick, fast-paced fights. Combine your swarm abilities and counter constantly evolving attacks of your opponents. Survive varying enemy waves, get upgrades to your swarm, and make it to the next system alive!
- 7
StarDrive
Single-player alternative to Castle Battles — playable solo, no multiplayer required. Shares Strategy and Indie with Castle Battles.
As a space bear, human or any other race, venture forth into the galaxy, create custom ships, conquer new worlds, build new colonies and defend your very existence against those who would take what is yours.
- 8
Gemini Wars
Single-player alternative to Castle Battles — playable solo, no multiplayer required. Shares Strategy and Indie with Castle Battles.
Take control of a fleet commander returned from exile, rise through the ranks of the United Space Federation forces and join an epic war across the stars.
- 9
Eufloria HD
Single-player alternative to Castle Battles — playable solo, no multiplayer required. Shares Strategy and Indie with Castle Battles.
Experience the celebrated strategy gameplay of Eufloria HD. Conquer asteroids in space and use their resources to grow floral creatures that do your bidding. Expand your empire and fight against several teams of AI opponents that all vie for the same resources and can offer fierce opposition.
- 10
Conflicks - Revolutionary Space Battles
Single-player alternative to Castle Battles — playable solo, no multiplayer required. Shares Action and Strategy with Castle Battles.
Spaceships, lasers, and… chickens! What more could you ask for?Conflicks: Revolutionary Space Battles is a creative new take on space-themed videogames that merges the deep, thoughtful gameplay of strategy games with the intuitive accessibility of physics-based games.
- 11
It Stares Back
Single-player alternative to Castle Battles — playable solo, no multiplayer required. Shares Action and Strategy with Castle Battles.
Enter The Great Tapestry: Once a land of candy-colored dreams, now a tattered realm of perilous ruin. This dark-fantasy RTS weaves RPG mechanics into a hand painted, lore-rich story. Will you gaze into the void? Be wary, traveler... IT STARES BACK
- 12
The Dark
Single-player alternative to Castle Battles — playable solo, no multiplayer required. Shares Action and Indie with Castle Battles.
You come round as your escape pod plummets into the inky waters of a distant flooded planet. Comms are down and power failing. You have no choice but to head out into.. the dark.