Single-player games like The Sea of Death
Below are 8 single-player Steam games similar to The Sea of Death, 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 The Sea of Death page.
Ranked picks
- 1

Unusual Findings
Single-player alternative to The Sea of Death — playable solo, no multiplayer required. Shares Indie and Adventure with The Sea of Death.
Three friends uncover mysteries in the 1980s. Follow their amazing adventures in a game where your decisions really matter. Be prepared to spin like a record on your incredible journey back to the era of synthesizers, VHS Rental stores, 8 bits games and evil alien conspiracies.
- 2

Shardlight
Single-player alternative to The Sea of Death — playable solo, no multiplayer required. Shares Indie and Adventure with The Sea of Death.
A post-apocalyptic adventure game from the publisher that brought you Primordia, Gemini Rue and Technobabylon! A young woman stricken with a deadly plague searches for a cure in a hostile world.
- 3

The Posthumous Investigation
Single-player alternative to The Sea of Death — playable solo, no multiplayer required. Shares Indie and Adventure with The Sea of Death.
A dead man hired you to solve his own murder. You have one day. Fourteen suspects. And as many attempts as it takes. A hand-drawn noir mystery set in 1937 Rio de Janeiro, where every suspect has a life, a schedule, and something to hide.
- 4

Lil' Guardsman
Single-player alternative to The Sea of Death — playable solo, no multiplayer required. Shares Indie and Adventure with The Sea of Death.
Imagine you're a 12 year old, suddenly in charge of the guard shed at the castle gate, where you decide if elves, goblins and 100+ other characters should be admitted. It's a wonderful combination of deduction, narrative and puzzle games.
- 5

Booth: A Dystopian Adventure
Single-player alternative to The Sea of Death — playable solo, no multiplayer required. Shares Indie and Adventure with The Sea of Death.
The year is 2036. In this famine-riddled world, food-centric sovereignty has been established. Living alone inside a food-inspection booth, you are striving to find truth and peace beyond the borderline.
- 6

The Bunker
Single-player alternative to The Sea of Death — playable solo, no multiplayer required. Shares Indie and Adventure with The Sea of Death.
The Bunker is an award-winning interactive psychological horror movie. You are John, born underground the day the bombs fell, now alone and trying to survive. But when an alarm goes off, a catastrophic chain of events begins. Unlock the dark secrets of your past as you try to escape The Bunker.
- 7

The Room Three
Single-player alternative to The Sea of Death — playable solo, no multiplayer required. Shares Indie and Adventure with The Sea of Death.
Lured to a remote island, you find yourself confined within the rooms of an ominous mansion. You must draw upon all your puzzle-solving ability to navigate a series of trials devised by a mysterious figure known only as “The Craftsman”. Do you have what it takes to escape?
- 8

BEAUTIFUL DESOLATION
Single-player alternative to The Sea of Death — playable solo, no multiplayer required. Shares Indie and Adventure with The Sea of Death.
BEAUTIFUL DESOLATION is an isometric, point & click adventure game set in a post-apocalyptic future. Explore an unscene landscape, solve puzzles, meet new friends and make powerful enemies, mediate conflicts and fight for your life as you unravel the secrets of the desolate world around you.