Single-player games like O.R.B: Off-World Resource Base
Below are 12 single-player Steam games similar to O.R.B: Off-World Resource Base, 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 O.R.B: Off-World Resource Base page.
Ranked picks
- 1
Earth 2160
Single-player alternative to O.R.B: Off-World Resource Base — playable solo, no multiplayer required. Shares Strategy with O.R.B: Off-World Resource Base.
After the destruction of the EARTH in 2150, the leaders of the Eurasian Dynasty escaped on board an evacuation fleet. Now they are fighting for the survival of the human species. Their base is one large building comprising of smaller variable parts.
- 2
Sword of the Stars: Complete Collection
Single-player alternative to O.R.B: Off-World Resource Base — playable solo, no multiplayer required. Shares Strategy with O.R.B: Off-World Resource Base.
Sword of the Stars: Complete Collection is the original Sword of the Stars games and the three expansions Born of Blood, A Murder of Crows and Argos Naval Yard. It is the year 2405, and human scientists have discovered a new technology that allows travel from star to star at speeds faster than light.
- 3
Void Destroyer
Single-player alternative to O.R.B: Off-World Resource Base — playable solo, no multiplayer required. Shares Strategy with O.R.B: Off-World Resource Base.
Combining the best of space combat and real time strategy. Victory can be tactical, a dogfight or capital ship slugging match - depending on how you decide to achieve it. Space combat on a RTS scale with space sim savagery.
- 4
Nexus - The Jupiter Incident
Single-player alternative to O.R.B: Off-World Resource Base — playable solo, no multiplayer required. Shares Strategy with O.R.B: Off-World Resource Base.
Ambitious megacorporations monopolize the conquest of space and the colonization of the solar system. At the very edge of the solar system, the companies make a discovery that will shift the technological advantage and upset the balance. And so a new conflict is born: "The Jupiter Incident."
- 5
Space Empires IV Deluxe
Single-player alternative to O.R.B: Off-World Resource Base — playable solo, no multiplayer required. Shares Strategy with O.R.B: Off-World Resource Base.
The award-winning Space Empires IV Deluxe is the latest edition in the Space Empires series. A grand strategy title in the space 4X (explore, expand, exploit, and exterminate) genre, Space Empires has already found a place in the heart of strategy gamers everywhere.
- 6
Ground Control II: Operation Exodus
Single-player alternative to O.R.B: Off-World Resource Base — playable solo, no multiplayer required. Shares Strategy with O.R.B: Off-World Resource Base.
It’s 2741 and the universe is at war. The Terran Empire is laying siege to the NSA, a treaty of colonies that upholds freedom and democracy. After losing the battle in space, the NSA is forced to retreat to its last stronghold. Can you snatch victory from impending doom?
- 7
Nomad Fleet
Single-player alternative to O.R.B: Off-World Resource Base — playable solo, no multiplayer required. Shares Strategy with O.R.B: Off-World Resource Base.
Nomad Fleet is a RTS game where you must lead the last remnants of Mankind to safety after a mysterious alien race has hunted them near extinction. Lead a fully armed fleet of battleships, carriers and fighters through a series of randomized scenarios and encounters where they must fight for their survival while scavenging for resources,...
- 8
Homeworld Remastered Collection
Single-player alternative to O.R.B: Off-World Resource Base — playable solo, no multiplayer required. Shares Strategy with O.R.B: Off-World Resource Base.
Experience the epic space strategy games that redefined the RTS genre. Control your fleet and build an armada across more than 30 single-player missions. Choose unit types, fleet formations and flight tactics for each strategic situation.
- 9
Disciples II: Gallean's Return
Single-player alternative to O.R.B: Off-World Resource Base — playable solo, no multiplayer required. Shares Strategy with O.R.B: Off-World Resource Base.
Disciples II: Gallean's Return is a compilation edition that includes the base game, Disciples II: Dark Prophecy, plus the two standalone expansions Disciples II: Guardians of the Light and Disciples II: Servants of the Dark.
- 10
Disciples II: Rise of the Elves
Single-player alternative to O.R.B: Off-World Resource Base — playable solo, no multiplayer required. Shares Strategy with O.R.B: Off-World Resource Base.
The award-winning series Disciples introduced a milestone in the game's very successful history; the introduction of a new race: The Elves. The Elven Race added a new dimension to the game and added countless hours of gameplay. Now that series has expanded further with Disciples II: Rise Of The Elves.
- 11
Disciples Sacred Lands Gold
Single-player alternative to O.R.B: Off-World Resource Base — playable solo, no multiplayer required. Shares Strategy with O.R.B: Off-World Resource Base.
Disciples GOLD takes the phenomenal gameplay, stunning graphics, over 100 spells and a powerful scenario editor of Disciples and adds new scenarios and gameplay features that set the new standard in Turn-Based Strategy.
- 12
Nexagon: Deathmatch
Single-player alternative to O.R.B: Off-World Resource Base — playable solo, no multiplayer required. Shares Strategy with O.R.B: Off-World Resource Base.
Unfolding in the fourth millennium, this is a real-time, 3D, action-packed game of mortal arena combat that emphasizes tactics and features advancement and fortress building in a high stakes blood sport. Battle for freedom in a televised tournament in a completely destructible environment.