Single-player games like Sector Unknown
Below are 20 single-player Steam games similar to Sector Unknown, 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 Sector Unknown page.
Ranked picks
- 1
Colony Ship: A Post-Earth Role Playing Game
Single-player alternative to Sector Unknown — playable solo, no multiplayer required. Shares RPG with Sector Unknown.
Colony Ship is a turn-based, party-based role-playing game set aboard a generation ship launched to Proxima Centauri. The game features a detailed skill-based character system, multiple ways to handle quests, choices & consequences, and branching dialogue trees.
- 2
Meridian
Single-player alternative to Sector Unknown — playable solo, no multiplayer required. Shares RPG with Sector Unknown.
A choice-driven cyberpunk RPG with tactical turn-based combat. Talk, sneak, hack, or fight your way through branching jobs. Solve every job your way, and pay for each upgrade with a piece of who you are.
- 3
Vendir: Plague of Lies
Single-player alternative to Sector Unknown — playable solo, no multiplayer required. Shares RPG with Sector Unknown.
Vendir: Plague of Lies is a classic party-based RPG with a deep storyline and turn-based combat. Experience an intricately crafted world, steeped in history and brought to life through a carefully crafted atmosphere and the trials and tribulations of stories of the people that inhabit it.
- 4
Avaria: Iron Rule
Single-player alternative to Sector Unknown — playable solo, no multiplayer required. Shares RPG with Sector Unknown.
An isometric, party-based, real-time with pause RPG exploring colonialism, power, and punishment. Set in a rich fantasy world, Avaria: Iron Rule offers complex choices, deep dialogues and intense tactical battles inspired by classics of the genre.
- 5
King Arthur: Legion IX
Single-player alternative to Sector Unknown — playable solo, no multiplayer required. Shares RPG with Sector Unknown.
Dive into a unique blend of turn-based tactics and character-centric RPGs. Lead the skilled Roman tribune Gaius Julius Mento as he navigates through the dark fantasy realm of Avalon.
- 6
Wasteland 3
Single-player alternative to Sector Unknown — playable solo, no multiplayer required. Shares RPG with Sector Unknown.
Following the critically acclaimed 2014 Game of the Year winner Wasteland 2, the RPG series that pioneered the post-apocalyptic genre in video games returns with Wasteland 3.
- 7
The Age of Decadence
Single-player alternative to Sector Unknown — playable solo, no multiplayer required. Shares RPG with Sector Unknown.
The Age of Decadence is a turn-based, hardcore role-playing game set in a low magic fantasy world. The game features a detailed skill-based character system, multiple skill-based ways to handle quests, choices & consequences, and extensive dialogue trees.
- 8
Divinity: Original Sin 2 - Definitive Edition
Single-player alternative to Sector Unknown — playable solo, no multiplayer required. Shares RPG with Sector Unknown.
The critically acclaimed RPG that raised the bar, from the creators of Baldur's Gate 3. Gather your party. Master deep, tactical combat. Venture as a party of up to four - but know that only one of you will have the chance to become a God.
- 9
Mass Effect (2007)
Single-player alternative to Sector Unknown — playable solo, no multiplayer required. Shares RPG with Sector Unknown.
As Commander Shepard, you lead an elite squad on a heroic, action-packed adventure throughout the galaxy.
- 10
Wasteland 1 - The Original Classic
Single-player alternative to Sector Unknown — playable solo, no multiplayer required. Shares RPG with Sector Unknown.
For the first time in over 20 years, we are heralding the return of a much loved piece of gaming history with the classic RPG, Wasteland! Mutants. Again. Even more than there were last time: they seem to materialize out of the very grains of the radioactive desert sand. Venomous yellow eyes.
- 11
Fallout 4
Single-player alternative to Sector Unknown — playable solo, no multiplayer required. Shares RPG with Sector Unknown.
From Bethesda Game Studios, the award-winning creators of Starfield and The Elder Scrolls V: Skyrim, comes Fallout 4. A landmark in open-world RPG design and winner of over 200 ‘Best Of’ honors, including the DICE and BAFTA Game of the Year.
- 12
Pathfinder: Kingmaker — Enhanced Plus Edition
Single-player alternative to Sector Unknown — playable solo, no multiplayer required. Shares RPG with Sector Unknown.
Pathfinder: Kingmaker - Enhanced Plus Edition is the first isometric party-based cRPG set in the Pathfinder fantasy universe. Enjoy a classic RPG experience inspired by games like Baldur's Gate, Fallout 1 and 2 and Arcanum. Explore and conquer the Stolen Lands and make them your kingdom!
- 13
The Invincible
Single-player alternative to Sector Unknown — playable solo, no multiplayer required.
Rethink human’s dominion in The Invincible: a story-driven adventure set in a hard sci-fi world by Stanisław Lem. Discover planet Regis III as scientist Yasna, use atompunk tools looking for a missing crew and face unforeseen threats. Make choices in a philosophical story that’s driven by science.
- 14
Wasteland Remastered
Single-player alternative to Sector Unknown — playable solo, no multiplayer required. Shares RPG with Sector Unknown.
The RPG classic rises from the nuclear ashes! Wasteland Remastered is an overhaul of the 1988 title that brought the post-apocalypse to video games. See where the Wasteland series began and experience the character and world the sequels are built on.
- 15
Jagged Alliance 3
Single-player alternative to Sector Unknown — playable solo, no multiplayer required.
The country of Grand Chien is thrown into chaos when the elected president goes missing and the paramilitary force known as “the Legion” seizes control. Hire mercs, meet interesting characters, and fight in tactically deep turn-based combat in this true successor to a beloved franchise.
- 16
Age of Gladiators
Single-player alternative to Sector Unknown — playable solo, no multiplayer required.
"Age of Gladiators" is a single-player strategy/management sim set at the height of the bloody gladiatorial games in ancient Rome. As your fighters increase in level, it will be up to you to decide how to forge their attributes and abilities.
- 17
Age of Gladiators II: Rome
Single-player alternative to Sector Unknown — playable solo, no multiplayer required. Shares RPG with Sector Unknown.
Age of Gladiators II: Rome is a single-player strategy/management sim set at the height of the bloody gladiatorial games in ancient Rome. As your fighters increase in level, it will be up to you to decide how to forge their attributes and abilities. Build your story. Build your empire.
- 18
Raiders! Forsaken Earth
Single-player alternative to Sector Unknown — playable solo, no multiplayer required. Shares RPG with Sector Unknown.
Raiders! Forsaken Earth is a strategy/management game where you play as the leader of a merciless band of post-apocalyptic marauders. Build up your organization while extorting, kidnapping, and destroying the last remnants of civilization. The wasteland doesn't need another hero...
- 19
Age of Gladiators II: Death League
Single-player alternative to Sector Unknown — playable solo, no multiplayer required.
Age of Gladiators II: Death League is a single-player strategy game set in the futuristic 3000AD, during the rebirth of the violent and hyper-competitive gladiatorial games. Manage your franchise while forging the attributes and abilities of your warriors. Build your story. Build your empire.
- 20
Age of Gladiators Reforged
Single-player alternative to Sector Unknown — playable solo, no multiplayer required. Shares RPG with Sector Unknown.
Age of Gladiators Reforged is a REMAKE of the 2016 indie game. A single-player strategy/management experience set at the height of the bloody gladiatorial games in ancient Rome that allows you to manage your fighters as they increase in level, forging them into killing machines and champions.