Single-player games like Deep Sixed
Below are 12 single-player Steam games similar to Deep Sixed, 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 Deep Sixed page.
Ranked picks
- 1

Shortest Trip to Earth
Single-player alternative to Deep Sixed — playable solo, no multiplayer required. Shares Action and Strategy with Deep Sixed.
Shortest Trip to Earth is a roguelike spaceship simulator focused on exploration, ship management and tactical battles. Embark on a perilous journey across the universe with nuclear missiles, armed crew and a cat.
- 2

Duskers
Single-player alternative to Deep Sixed — playable solo, no multiplayer required. Shares Strategy and Indie with Deep Sixed.
Pilot drones into derelict spaceships to find the means to survive and piece together how the universe became a giant graveyard.
- 3

Genesis Alpha One Deluxe Edition
Single-player alternative to Deep Sixed — playable solo, no multiplayer required. Shares Action and Indie with Deep Sixed.
Hyperjump into the dark recesses of space with Genesis Alpha One - a roguelike FPS where you must build, maintain and navigate your ship through a galaxy filled with hostile alien and human threats. Explore, create and survive the militarized space race in order to secure humanity’s future.
- 4

CRYPTARK
Single-player alternative to Deep Sixed — playable solo, no multiplayer required. Shares Action and Strategy with Deep Sixed.
Cryptark is a 2D sci-fi shooter where you take on the role of a heavily armed privateer seeking to earn government contracts by boarding deadly alien space-hulks. It's up to you to strategize a plan of attack, pick an equipment loadout, and destroy the central core to be victorious.
- 5

Tin Can
Single-player alternative to Deep Sixed — playable solo, no multiplayer required. Shares Strategy and Indie with Deep Sixed.
You've barely managed to escape your exploding spaceship. Now in an old escape pod, you hurtle through space at the mercy of the cosmos. With no knowledge of the pod’s complex systems, your life depends on a technical manual and your own wits. How long can you survive?
- 6

Deadnaut
Single-player alternative to Deep Sixed — playable solo, no multiplayer required. Shares Strategy and Indie with Deep Sixed.
Deadnaut is Screwfly Studios' second game and follow up to cult hit, Zafehouse: Diaries. Deadnauts, so named because they’re unlikely to return, must explore, investigate and fight their way through the derelict ships of dead civilisations. Every mission is unique and no two locations are the same.
- 7

Objects in Space
Single-player alternative to Deep Sixed — playable solo, no multiplayer required. Shares Action and Strategy with Deep Sixed.
Objects in Space is a retro space game centred on 2D point-and-click stealth action in a massive open world. Players have their own customisable ships and can meet people, become a trader, bounty hunter, explorer, scavenger or all of them at once.
- 8

Tharsis
Single-player alternative to Deep Sixed — playable solo, no multiplayer required. Shares Strategy and Indie with Deep Sixed.
Succeeding in Tharsis requires you to make the best of what you have, even if it happens to be a pair of snake eyes. Certain factors may be outside of your control, but that doesn’t mean they can’t be overcome. Tharsis is not a game about facing the odds. It’s a game about changing them.
- 9

Silent Hunter® III
Single-player alternative to Deep Sixed — playable solo, no multiplayer required. Shares Simulation with Deep Sixed.
The king of submarine simulations returns with an all-new 3D engine, new crew command features, and more realistic WWII naval action than ever before. The movie-like graphics and simple, tension-filled gameplay make this the perfect game for the realism fanatic and the casual gamer.
- 10

Rogue State Revolution
Single-player alternative to Deep Sixed — playable solo, no multiplayer required. Shares Strategy and Indie with Deep Sixed.
Greetings your Excellency. Time to rebuild, reform and prepare for new challenges in the People's Republic of Basenji. In this thrilling political strategy, you will appoint ministers and lead the country to success. Be careful — you may find yourself replaced in the next election.
- 11

Precipice
Single-player alternative to Deep Sixed — playable solo, no multiplayer required. Shares Strategy and Indie with Deep Sixed.
A game of diplomacy and war in the atomic age. Safeguard your closest allies and change unfavorable regimes without giving away your long-term ambitions. Every action risks an enemy reprisal, and if nobody backs down from a standoff, we all lose.
- 12

Rogue State
Single-player alternative to Deep Sixed — playable solo, no multiplayer required. Shares Strategy and Indie with Deep Sixed.
Assume control of a Middle Eastern country recovering from a violent revolution. Forge alliances, grow your economy, invade your neighbors, or pacify your population. Rogue State is a geopolitical strategy game that will force you to always stay one step ahead of your rivals to survive.