Single-player games like Underspace
Below are 12 single-player Steam games similar to Underspace, 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 Underspace page.
Ranked picks
- 1
EVERSPACE™ 2
Single-player alternative to Underspace — playable solo, no multiplayer required. Shares Action and Adventure with Underspace.
EVERSPACE 2 is a fast-paced single-player spaceship shooter with exploration in space and on planets, tons of loot, RPG elements, mining, and crafting. Experience an exciting sci-fi story set in a vivid, handcrafted open world full of secrets, puzzles, and perils.
- 2
Starcom: Unknown Space
Single-player alternative to Underspace — playable solo, no multiplayer required. Shares Action and Indie with Underspace.
Starcom: Unknown Space is an action RPG of space exploration and adventure. Build your own starship while discovering an epic story in a universe of strange mysteries, alien factions and uncharted worlds.
- 3
Starcom: Nexus
Single-player alternative to Underspace — playable solo, no multiplayer required. Shares Action and Indie with Underspace.
Suddenly thrown into an unknown galaxy, you must explore, fight or befriend aliens and transform your ship from a small survey vessel into a powerful battlecruiser to unravel the mystery of the forces that brought you here and find your way home.
- 4
Void Destroyer 2
Single-player alternative to Underspace — playable solo, no multiplayer required. Shares Action and Indie with Underspace.
Start with nothing... End with everything! All you have is a basic ship, barely fit for combat, with it you'll start your journey and empire. A open world space sandbox, inspired by and expanding the classics.
- 5
X4: Foundations
Single-player alternative to Underspace — playable solo, no multiplayer required. Shares Action with Underspace.
Your journey to building a vast space empire begins behind the controls of a single ship. Explore, trade, fight, and build as you rise to command fleets, stations, and entire economies in a living, fully simulated universe that reacts to every decision.
- 6
Evochron Mercenary
Single-player alternative to Underspace — playable solo, no multiplayer required. Shares Action and Indie with Underspace.
The life of an independent mercenary is rarely without excitement. Your spacecraft awaits and your adventure begins in the Sapphire star system.
- 7
SpaceBourne 2
Single-player alternative to Underspace — playable solo, no multiplayer required. Shares Action and Indie with Underspace.
Embark on a journey to greatness. Get ready for adrenaline-fueled battles and a chance to claim your place in the galaxy. Grab the controls of your ship, gear up for the fight, and unleash your ambition to conquer and build a new empire in the vastness of space.
- 8
Starpoint Gemini 2
Single-player alternative to Underspace — playable solo, no multiplayer required. Shares Action and RPG with Underspace.
Captain your own space ship and roam the galaxy in 3D in this tactical space simulator with tons of RPG depth ! Space has never looked so inviting - but images can betray...It has been two years since the end of the second Gemini war, the situation in the wartorn system is further from resolution than ever.
- 9
The Elder Scrolls V: Skyrim
Single-player alternative to Underspace — playable solo, no multiplayer required. Shares RPG with Underspace.
EPIC FANTASY REBORN The next chapter in the highly anticipated Elder Scrolls saga arrives from the makers of the 2006 and 2008 Games of the Year, Bethesda Game Studios. Skyrim reimagines and revolutionizes the open-world fantasy epic, bringing to life a complete virtual world open for you to explore any way you choose.
- 10
Freespace 2
Single-player alternative to Underspace — playable solo, no multiplayer required. Shares Action with Underspace.
FreeSpace 2, the follow up to the classic Descent: FreeSpace – The Great War is ready to engage you in the second round. Follow the Grand Terran Vasudan Alliance further into the mysteries of the Shivans. Get your flight stick and hit the flight deck. The last time was just a warm up.
- 11
No Man's Sky
Single-player alternative to Underspace — playable solo, no multiplayer required. Shares Action and Adventure with Underspace.
No Man's Sky is a game about exploration and survival in an infinite procedurally generated universe.
- 12
Sunless Skies: Sovereign Edition
Single-player alternative to Underspace — playable solo, no multiplayer required. Shares Indie and Adventure with Underspace.
SAIL THE STARS. BETRAY YOUR QUEEN. MURDER A SUN. Sunless Skies is a Gothic Horror roleplay game with a focus on exploration and exquisite storytelling.