Single-player games like Neptune Island
Below are 8 single-player Steam games similar to Neptune Island, 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 Neptune Island page.
Ranked picks
- 1
Cursed Baby
Single-player alternative to Neptune Island — playable solo, no multiplayer required. Shares Indie and Adventure with Neptune Island.
The once #1 horror game on the Horror list of Itch is back! Join now and use a variety of repair tools to experience life as a handyman in a haunted house, uncover the terrifying past of this old house and face the terrifying demon baby head-on!
- 2
LIMINAL PHASE
Single-player alternative to Neptune Island — playable solo, no multiplayer required. Shares Indie with Neptune Island.
LIMINAL PHASE is a VR action horror game set in a parallel ‘90s. Fight malevolent monsters, solve peculiar puzzles, and explore the dark corners of a fractured mind consumed by video games.
- 3
COLD CALL
Single-player alternative to Neptune Island — playable solo, no multiplayer required. Shares Indie and Adventure with Neptune Island.
COLD CALL is a first-person retro horror game based on a dying Earth full of unexplained mysteries. Escape Northbridge's research facility as you explore and uncover the truth behind a dying world.
- 4
Deadlined.
Single-player alternative to Neptune Island — playable solo, no multiplayer required. Shares Indie with Neptune Island.
a Psychological Horror where you lose yourself while trying to finish your paperwork before the Deadline.
- 5
Please Duology
Single-player alternative to Neptune Island — playable solo, no multiplayer required. Shares Indie and Adventure with Neptune Island.
A compilation of two slow-paced, cosmic horror walking simulators, to be completed in under an hour. Please makes you maintain a power station and ignore the noises from the main engine, while Please Follow has you explore the trenches of a losing war, exposing your mind to visions of another world.
- 6
Escape to the Italian brainrot
Single-player alternative to Neptune Island — playable solo, no multiplayer required. Shares Indie with Neptune Island.
Escape to the Italian brainrot - это совместная игра в жанре хоррор для 1-2 игроков. Избегай Сахура и других монстров, чтобы попытаться сбежать.
- 7
Vincent's Horror Story
Single-player alternative to Neptune Island — playable solo, no multiplayer required. Shares Indie and Adventure with Neptune Island.
In Vincent's Horror Story, players are immersed in a spine-chilling and bizarre atmosphere teeming with frightening monsters and mind-bending challenges.
- 8
THE SUSPENSE
Single-player alternative to Neptune Island — playable solo, no multiplayer required. Shares Indie and Adventure with Neptune Island.
How might life inside Artificial Intelligence be like? Is it possible to stop this painful routine? This life even real or not? Try your luck...