Single-player games like Project Astra Dominium
Below are 11 single-player Steam games similar to Project Astra Dominium, 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 Project Astra Dominium page.
Ranked picks
- 1
Rionag: Survey Fleet
Single-player alternative to Project Astra Dominium — playable solo, no multiplayer required. Shares Strategy and Indie with Project Astra Dominium.
Rionag: Survey Fleet is a top-down starship builder and logistics game where it's your job to balance the needs of the crews with cutting-edge equipment on board. Unlock tech that adds new capabilities for your ships to go through hazardous environments, enabling you to explore new worlds.
- 2
Little Big Workshop
Single-player alternative to Project Astra Dominium — playable solo, no multiplayer required. Shares Strategy and Simulation with Project Astra Dominium.
Manage your workers, stations, machines and create awesome stuff as your little big workshop grows into your dream factory!
- 3
Hammerting
Single-player alternative to Project Astra Dominium — playable solo, no multiplayer required. Shares Strategy and Indie with Project Astra Dominium.
Manage a Dwarven mining colony in the unexplored mountains of Mara. As conflict rages in the Overworld, you will need to craft, explore and fight as you provide the allies of your choice with the finest weapons and gear to assist them in the battle for glory.
- 4
InfraSpace
Single-player alternative to Project Astra Dominium — playable solo, no multiplayer required. Shares Strategy and Indie with Project Astra Dominium.
Create an extrasolar efficiency utopia from scratch! In this sci-fi city builder you need to start mining operations, plan production, and lay down transportation routes to ensure a smooth supply chain.
- 5
Assembly Planter
Single-player alternative to Project Astra Dominium — playable solo, no multiplayer required. Shares Strategy and Indie with Project Astra Dominium.
A farming / automation game, that allows you to progress from a poor hard-working farmer with just a few old tools to a lazy rich guy that watches his machines do the work for him while he tries to optimize production.
- 6
Rail Route
Single-player alternative to Project Astra Dominium — playable solo, no multiplayer required. Shares Strategy and Indie with Project Astra Dominium.
In Rail Route, you will design, construct, upgrade, and automate your railway network in one of the many maps based on real-life cities worldwide. Dispatch the trains to make the traffic flow and the network grow!
- 7
Automation Empire
Single-player alternative to Project Astra Dominium — playable solo, no multiplayer required. Shares Strategy and Indie with Project Astra Dominium.
Build and manage a massive industrial network of factories, mines, and farms. Employ a fleet of trains, trucks, and robotic drones. In the age of automation, efficiency is survival!
- 8
Tower Factory
Single-player alternative to Project Astra Dominium — playable solo, no multiplayer required. Shares Strategy and Indie with Project Astra Dominium.
Tower Factory is a tower defense and automation game with roguelite elements. Optimize resource production using conveyor systems while defending against monster waves. Can you find and destroy the enemy tower before it's too late?
- 9
Mindustry
Single-player alternative to Project Astra Dominium — playable solo, no multiplayer required. Shares Strategy with Project Astra Dominium.
An open-ended factory management game with RTS and tower defense elements.
- 10
Factorio
Single-player alternative to Project Astra Dominium — playable solo, no multiplayer required. Shares Strategy and Indie with Project Astra Dominium.
Factorio is a game about building and creating automated factories to produce items of increasing complexity, within an infinite 2D world. Use your imagination to design your factory, combine simple elements into ingenious structures, and finally protect it from the creatures who don't really like you.
- 11
Dyson Sphere Program
Single-player alternative to Project Astra Dominium — playable solo, no multiplayer required. Shares Strategy and Indie with Project Astra Dominium.
Build the most efficient intergalactic factory in space simulation strategy game Dyson Sphere Program! Harness the power of stars, collect resources, plan and design production lines and develop your interstellar factory from a small space workshop to a galaxy-wide industrial empire.