Games like Quantum Sleeper
If Quantum Sleeper is your kind of game, the closest matches are Backrooms: Lost Tape, ROUTINE and Maid of Sker — picked from the ranked list below. Each pick is ranked by what players of this game also play, shared genres and tags, and review-mined similarity — not a generic popularity list.
Get personalized picks →About Quantum Sleeper: Research Facility G-1-6 has gone dark. Your mission: reestablish contact and investigate the communication blackout. Equipped with AEGIS-scanner and a flashlight, uncover what is really going on here.

Players who liked Quantum Sleeper also play
Steam players who put hours into Quantum Sleeper also tend to own these titles — a signal called collaborative filtering. imho.run cross-references millions of library ownership patterns to surface games whose real audiences overlap, regardless of whether their genre tags match.
Backrooms: Lost Tape
WHY THIS
Top pick for Quantum Sleeper fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Quantum Sleeper.
You work in the cinema as an usher and accidentally fell into the Backrooms, now being trapped, needing to unravel the mysteries of the yellow rooms in order to get out of this place, but be careful, there are entities that will be in your way.
ROUTINE
WHY THIS
Second-strongest match for Quantum Sleeper fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Quantum Sleeper.
ROUTINE is a First Person Sci-Fi Horror set on an abandoned lunar base designed around an 80s vision of the future. Explore and investigate your surroundings as you survive against unknown threats.
Maid of Sker
WHY THIS
Third-strongest match for Quantum Sleeper fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Quantum Sleeper.
Maid of Sker is a first-person survival horror, set in a remote hotel with a gory and macabre history from Welsh folklore. Brave the nightmares of the Quiet Ones. Do not panic…don’t even breathe!
Apartment No 129
WHY THIS
Ranked #4 for Quantum Sleeper fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Quantum Sleeper.
Emir, who has an interest in mysterious events, steps alone into the abandoned apartment known as "Apartment No 129" to trace the trail of a paranormal event that occurred in 2009 and shook the country. However, he will find himself in an unexpected confrontation within this horror apartment.
DYSTHANASIA
WHY THIS
Ranked #5 for Quantum Sleeper fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Quantum Sleeper.
You awaken in a cold unfamiliar building crawling with grotesque creatures. Stave off terror using your wits and anything you can find, then try to make it out alive in this highly atmospheric environmental horror game.
Absolute Fear -AOONI- / 最恐 -青鬼-
WHY THIS
Ranked #6 for Quantum Sleeper fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Quantum Sleeper.
20 years after the birth of the legendary horror game "AOONI"... A completely new first-person, 3D horror stealth action "Absolute Fear -AOONI-" is now available! Players take on the role of a younger sister searching for her older sister in a mysterious mansion where AOONI roam.
HORROR TALES: The Wine
WHY THIS
Ranked #7 for Quantum Sleeper fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Quantum Sleeper.
Explore a post-pandemic fictional Mediterranean island and confront your fears! Immerse yourself in a seemingly abandoned city and struggle to find a precious Banydebosc red wine bottle to cure your loved ones. But be aware; your Nemesis is hunting you. Indie Jumpscares included! :D
Pacify
WHY THIS
Ranked #8 for Quantum Sleeper fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Quantum Sleeper.
An online co-op horror game where you pacify, weaken and capture supernatural creatures for PAH Inc. Each level has a different story, unique monsters, and multiple endings. Play single player or together with up to 6 friends. Includes proximity voice chat with fun effects.
Cheaper alternatives
Games in the same vein priced at least 40% below Quantum Sleeper at current Steam store prices.
Garry's Mod
WHY THIS
Priced ~44% under Quantum Sleeper on Steam right now. Shares Indie with Quantum Sleeper.
Garry's Mod is a physics sandbox. There aren't any predefined aims or goals. We give you the tools and leave you to play.
Vampire Survivors
WHY THIS
Priced ~44% under Quantum Sleeper on Steam right now. Shares Action and Indie with Quantum Sleeper.
Mow down thousands of night creatures and survive until dawn! Vampire Survivors is a gothic horror casual game with rogue-lite elements, where your choices can allow you to quickly snowball against the hundreds of monsters that get thrown at you. Be the bullet hell!
Titanfall® 2
WHY THIS
Priced ~50% under Quantum Sleeper on Steam right now. Shares Action with Quantum Sleeper.
Respawn Entertainment gives you the most advanced titan technology in its new, single player campaign & multiplayer experience. Combine & conquer with new titans & pilots, deadlier weapons, & customization and progression systems that help you and your titan flow as one unstoppable killing force.
Cookie Clicker
WHY THIS
Priced ~44% under Quantum Sleeper on Steam right now. Shares Indie with Quantum Sleeper.
An idle game about making cookies! Originally released in 2013 on the web, and actively developed since then. This is the official version for Steam.
WEBFISHING
WHY THIS
Priced ~44% under Quantum Sleeper on Steam right now. Shares Indie with Quantum Sleeper.
WEBFISHING a multiplayer chatroom-focused fishing game! Relax and fish (on the web!)
POSTAL 2
WHY THIS
Priced ~89% under Quantum Sleeper on Steam right now. Shares Action and Indie with Quantum Sleeper.
Live a week in the life of "The POSTAL Dude"; a hapless everyman just trying to check off some chores. Buying milk, returning an overdue library book, getting Gary Coleman's autograph, what could possibly go wrong?
Buckshot Roulette
WHY THIS
Priced ~67% under Quantum Sleeper on Steam right now. Shares Action and Indie with Quantum Sleeper.
Play Russian roulette with a 12-gauge shotgun. Four enter. One leaves. Roll the dice with your life. Good luck!
Brotato
WHY THIS
Priced ~44% under Quantum Sleeper on Steam right now. Shares Action and Indie with Quantum Sleeper.
Brotato is a top-down arena shooter roguelite where you play a potato wielding up to 6 weapons at a time to fight off hordes of aliens. Choose from a variety of traits and items to create unique builds and survive until help arrives.
Free alternatives
Free-to-play games that recommended players of this title also tend to enjoy.
Doki Doki Literature Club!
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie with Quantum Sleeper.
The Literature Club is full of cute girls! Will you write the way into their heart? This game is not suitable for children or those who are easily disturbed.
Life is Strange - Episode 1
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Adventure with Quantum Sleeper.
Episode 1 now FREE! Life is Strange is an award-winning and critically acclaimed episodic adventure game that allows the player to rewind time and affect the past, present and future.
Ultimate Custom Night
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Indie with Quantum Sleeper.
Welcome to the ultimate FNAF mashup, featuring 50 selectable characters and custom difficulties!
ENA: Dream BBQ
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and Adventure with Quantum Sleeper.
Experience surreal environments and inexplicable characters as ENA in a new wild world.
The Murder of Sonic the Hedgehog
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie with Quantum Sleeper.
Sonic the Hedgehog...was murdered!? Get to the bottom of the mystery in this brand-new adventure!
Indigo Park: Chapter 1
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Indie with Quantum Sleeper.
Explore the abandoned childhood wonder of Indigo Park! Guided by Rambley the Raccoon, help restore power to the destroyed amusement park while you run from the reason it shut down.
STRAFTAT
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action with Quantum Sleeper.
STRAFTAT is a 1v1/2v2 ONLINE first person SHOOTER with quick rounds in over 350 MAPS ; Including all WEAPONS, proximity chat and 4 players FFA.
The Looker
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie with Quantum Sleeper.
You wake up, alone, on a strangely familiar island full of puzzles that will frustrate and annoy you.
Narrow it down
Head-to-head comparisons
Frequently asked about Quantum Sleeper
- How much does Quantum Sleeper cost?
- Quantum Sleeper is listed on Steam at 8.99 USD (current store price; Steam sales may reduce this temporarily).
- What games are most similar to Quantum Sleeper?
- Based on Steam play patterns and shared genres/tags, the games most often recommended alongside Quantum Sleeper are Backrooms: Lost Tape, ROUTINE, Maid of Sker.
- Who developed Quantum Sleeper?
- Quantum Sleeper was developed by Helm Boy Studios and published by Interdiction Studios.
imho.run ranks Steam game alternatives using a mix of collaborative filtering (ALS / iALS / EASE / LightGCN), content scoring over genres, categories, Steam tags, developers, and publishers, plus AI-extracted vibes mined from review text. The page above is generated in seed mode anchored on Quantum Sleeper.
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