Single-player games like 99% - 残された被検体 -
Below are 10 single-player Steam games similar to 99% - 残された被検体 -, 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 99% - 残された被検体 - page.
Ranked picks
- 1
System Malfunction
Single-player alternative to 99% - 残された被検体 - — playable solo, no multiplayer required. Shares Indie and Simulation with 99% - 残された被検体 -.
"System Malfunction" is a first-person horror game set in a mysterious building. The player takes on the role of a security guard who witnesses strange occurrences during the night shift. In a fear-inducing environment, the player explores the building to uncover hidden truths.
- 2
It follows you
Single-player alternative to 99% - 残された被検体 - — playable solo, no multiplayer required. Shares Action and Indie with 99% - 残された被検体 -.
You are all alone in this dark and frightening place. Run and hide, hurry to find a way out, because it follows you...
- 3
The Observation Exit
Single-player alternative to 99% - 残された被検体 - — playable solo, no multiplayer required. Shares Indie and Simulation with 99% - 残された被検体 -.
A first-person psychological horror where you must identify anomalies, choose the correct elevator to progress, and escape an endless loop in a hospital corridor while avoiding deadly entities.
- 4
Whisper Forest
Single-player alternative to 99% - 残された被検体 - — playable solo, no multiplayer required. Shares Indie and Simulation with 99% - 残された被検体 -.
Whisper Forest is a Japanese-style horror game where "Nesting creatures." lurks. Players collect Amulets and offer them to lanterns.
- 5
EXPEDITION TO THE BACKROOMS
Single-player alternative to 99% - 残された被検体 - — playable solo, no multiplayer required. Shares Action and Indie with 99% - 残された被検体 -.
You are the exploration team from company Async, you arrive to reported anomaly place and searching for anomalies, but what would you find? Prepare yourself for a gripping and heart-pounding adventure in EXPEDITION TO THE BACKROOMS, where every step could be your last.
- 6
Below, Rusted Gods
Single-player alternative to 99% - 残された被検体 - — playable solo, no multiplayer required. Shares Indie and Simulation with 99% - 残された被検体 -.
You are the lifeline supporting an expedition into the unknown. Keep both yourself and your squad alive by interpreting instrument readings, explore the facilities, and uncover something ancient and eager to be born.
- 7
Life after Death
Single-player alternative to 99% - 残された被検体 - — playable solo, no multiplayer required. Shares Action and Indie with 99% - 残された被検体 -.
Do you remember the scares that chased you in childhood? How did your limbs shake with fear, take your breath away, and you couldn't do anything about it? I invite you to live it all over again!
- 8
The Cabin Factory
Single-player alternative to 99% - 残された被検体 - — playable solo, no multiplayer required. Shares Indie and Simulation with 99% - 残された被検体 -.
Your job at the Cabin Factory is simple: inspect the cabins and decide on whether they’re haunted or not. If you do find any anomalies, get out…immediately.
- 9
The Grim Gamble / グリムギャンブル
Single-player alternative to 99% - 残された被検体 - — playable solo, no multiplayer required. Shares Indie with 99% - 残された被検体 -.
"The Grim Gamble is a first-person multiplayer game where players take part in a bizarre death game, playing a board game for their survival."
- 10
Desktop Fishing Garden
Single-player alternative to 99% - 残された被検体 - — playable solo, no multiplayer required. Shares Indie with 99% - 残された被検体 -.
Desktop Fishing Garden is a cozy idle fishing game that lives on your desktop. Catch fish automatically, decorate your island to attract new species, sell your catch, and unlock upgrades. Create your own relaxing fishing paradise while you work, study, or simply unwind.