Single-player games like Slice of Sea
Below are 12 single-player Steam games similar to Slice of Sea, 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 Slice of Sea page.
Ranked picks
- 1

The Heir: Steampunk Escape Room
Single-player alternative to Slice of Sea — playable solo, no multiplayer required. Shares Indie and Adventure with Slice of Sea.
1895. In this first-person escape room, you play as Dr. Voss's aspiring scientific heir. Explore an immersive Victorian laboratory, solve ingenious puzzles woven into the environment and the story, and unravel the dark secret behind Voss's experiments.
- 2

Submachine: Legacy
Single-player alternative to Slice of Sea — playable solo, no multiplayer required. Shares Indie and Adventure with Slice of Sea.
Submachine is a hand-drawn puzzle adventure game. You find yourself in a vast network of desolate locations containing puzzles, secrets, notes and items to collect to help you along the way. Follow the story of a banished lighthouse keeper to discover his descent into ruins.
- 3

All the Promised Burn - An Yssaia Game
Single-player alternative to Slice of Sea — playable solo, no multiplayer required. Shares Indie and Adventure with Slice of Sea.
ALL THE PROMISED BURN is a hand-drawn Knowledge-based RPG about what an assassin does after the War ends. Can you learn new ways to be, when the past is still burned into you?
- 4

Detective Dunkadoo
Single-player alternative to Slice of Sea — playable solo, no multiplayer required. Shares Indie with Slice of Sea.
To ensure your career doesn't end sooner than the apocalypse, work hard to collect "Well-Done Stamps" and save your performance review!
- 5

The Visitor Effect: Not an experiment
Single-player alternative to Slice of Sea — playable solo, no multiplayer required. Shares Indie and Adventure with Slice of Sea.
What if your whole world was a lie? Solve clever puzzles and face incredible challenges to escape the faulty simulation that keeps you captive. Question reality and unravel a dark conspiracy while dodging security systems in this innovative puzzle-strategy adventure.
- 6

15LANDS: Where Stars Fall / 十五区:星落何处
Single-player alternative to Slice of Sea — playable solo, no multiplayer required. Shares Indie and Adventure with Slice of Sea.
In an absurd age where "solve puzzles or go dumb," everyone trains their brain to survive. Fixing the obsolete Campfire System should be just another dull night of overtime—until old friends' grayed-out avatars light up again. Amid wild puzzles, earnest, slightly silly "goofing off" memories return.
- 7

YAZAN: Lost Child
Single-player alternative to Slice of Sea — playable solo, no multiplayer required. Shares Indie and Adventure with Slice of Sea.
YAZAN is a 2D psychological anomaly game. Navigate a looping valley, inspect your surroundings for what doesn't belong, and turn back or press forward to make ten correct decisions and escape the loop.
- 8

THE FATUM
Single-player alternative to Slice of Sea — playable solo, no multiplayer required. Shares Indie and Adventure with Slice of Sea.
The Supreme Committee congratulates you on your promotion. Your task is to identify citizens infected by the unknown virus. Interrogate, inspect, pass a verdict. Test your deduction in a world of total control. Remember: the Standard above all.
- 9

Machinarium
Single-player alternative to Slice of Sea — playable solo, no multiplayer required. Shares Indie and Adventure with Slice of Sea.
Machinarium is the award-winning independent adventure game developed by the makers of Samorost series, Botanicula and CHUCHEL. Help Josef the robot save his girlfriend Berta kidnapped by the Black Cap Brotherhood gang!
- 10

Orb Of The Watcher
Single-player alternative to Slice of Sea — playable solo, no multiplayer required. Shares Indie and Adventure with Slice of Sea.
A tribute to the old adventure games of the nineties. Orb Of The Watcher is party based RPG where you explore the tunnels under a large city to find a magical artifact. Encountering friends, enemies and the odd pile of gold along the way.
- 11

Daymare Town
Single-player alternative to Slice of Sea — playable solo, no multiplayer required. Shares Indie and Adventure with Slice of Sea.
Daymare Town is a hand-drawn puzzle adventure game. You find yourself in a heart of a strange city populated by peculiar Metamorph creatures. This town is full of nooks and crannies, puzzles, secrets and items to collect to help you along the way. Can you escape the nightmare of a day?
- 12

The Watcher
Single-player alternative to Slice of Sea — playable solo, no multiplayer required. Shares Indie and Adventure with Slice of Sea.
A surveillance simulator set in a psychological thriller world. You are an unknown observer watching the residents of an apartment building across the street, in the strange city of Z, part of the totalitarian State of Nodia. But who's really watching whom?