IMHO.

Games like That's not my Neighbor

If That's not my Neighbor is your kind of game, the closest matches are Sasaeng | 사생, Rabid Shift and Adopt Me Please — picked from the ranked list below. Reviewers single out its challenging, funny and lighthearted. 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.

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That's not my Neighbor is a 2025 indie puzzle adventure game set in a 1950s apartment complex where doppelgangers have become a widespread problem. Players take on the role of a building doorman working for the Department of Doppelganger Detection, verifying residents' identities by examining documents and appearances to determine who genuinely belongs. The gameplay centers on checklist-based progression and document verification mechanics that create a methodical investigative experience. Players describe the atmosphere as tense and mysterious, with dark humor and noir elements adding to the experience. The game includes difficulty modes and a custom neighbor creator for replayability, with players highlighting the addictive short sessions as effective brain workouts. At $2.99, it offers substantial entertainment value, earning an 88% positive rating from nearly 1,900 Steam reviewers and supporting Steam Deck play.

About That's not my Neighbor: It's 1955, and for unknown reasons, doppelgangers are more common than usual. Therefore, the Department of Doppelganger Detection (D.D.D.) has taken action. You are the doorman of an apartment complex, and you must decide whether to let in those who claim to be your neighbors.

2025IndieAdventureSimulationCasual2.99 USDDeck PlayableWindows · Linuxby Nachosama Games
That's not my Neighbor — Steam game cover
Players highlight
Addictive short sessions for brain workoutsCheap price for hours of entertainmentCustom mode to create your own apartment rentersChallengingFunnyLighthearted

Players who liked That's not my Neighbor also play

Steam players who put hours into That's not my Neighbor 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.

  1. Sasaeng | 사생

    WHY THIS

    Top pick for That's not my Neighbor fans by collaborative filtering across millions of Steam libraries. Shares Indie and Adventure with That's not my Neighbor.

    A first-person psychological horror game about the life of a K-pop idol. Explore a luxury apartment, Korean streets, and your agency building as you confront the unsettling truth hidden beneath the surface.

    2025IndieAdventureSimulation3.99 USDSteam ↗
  2. Rabid Shift

    WHY THIS

    Second-strongest match for That's not my Neighbor fans by collaborative filtering across millions of Steam libraries. Shares Indie and Simulation with That's not my Neighbor.

    Working as a veterinarian in a strange, rotting city, you must examine mutilated patients and find clues for the detective. Survive amidst crime and an oppressive atmosphere. A grim story where the line between a doctor's duty and complicity blurs with each passing day.

    IndieSimulationCasualSteam ↗
  3. Adopt Me Please

    WHY THIS

    Third-strongest match for That's not my Neighbor fans by collaborative filtering across millions of Steam libraries. Shares Indie and Simulation with That's not my Neighbor.

    Welcome to the Soft Light Shelter . The animals are cute. The coffee is warm. Your job: vet the strays and find them a home. But keep your eyes open. Mimics are hiding in perfect pet disguises with innocent eyes, waiting to get inside. Are you sheltering a pet... or a monster?

    IndieSimulationCasualSteam ↗
  4. Death Sees Twice: Spot the Difference

    WHY THIS

    Ranked #4 for That's not my Neighbor fans by collaborative filtering across millions of Steam libraries. Shares Indie and Adventure with That's not my Neighbor.

    The most sinister spot-the-difference in the world. When you uncover the final mistake, the truth of this world will be revealed.

    2025IndieAdventureCasual2.99 USDSteam ↗
  5. August Walk

    WHY THIS

    Ranked #5 for That's not my Neighbor fans by collaborative filtering across millions of Steam libraries. Shares Indie and Adventure with That's not my Neighbor.

    The game has three story branches: normal, realistic, and mystical walk. In the normal branch you can just walk around the summer city, the forest and the spring.

    2023IndieAdventureSimulation0.99 USDSteam ↗
  6. There's a Gun in the Office

    WHY THIS

    Ranked #6 for That's not my Neighbor fans by collaborative filtering across millions of Steam libraries. Shares Indie and Adventure with That's not my Neighbor.

    You've been kidnapped and have to get out but luckily, there's a gun in the office. Unluckily, your captor comes back home every day, so you have to cover your tracks when you go out of your cell. Use each passing day to get closer to the gun until you can finally leave.

    2025IndieAdventureSimulation8.99 USDSteam ↗
  7. Choose Your Own Alternative

    WHY THIS

    Ranked #7 for That's not my Neighbor fans by collaborative filtering across millions of Steam libraries. Shares Indie and Adventure with That's not my Neighbor.

    A text-based adventure where you're tasked to exorcise your friend’s Inner Demon. You have 30 days to analyze objects filled with memories, discover which one is the reason for her possession and sacrifice it. Do not deviate from your mission. Save your friend no matter the cost.

    2026IndieAdventureSimulation3.49 USDSteam ↗
  8. No, I'm not a Human

    WHY THIS

    Shares achievement hunting, multiple endings, mystery and a mysterious mood with That's not my Neighbor.

    Ranked #8 for That's not my Neighbor fans by collaborative filtering across millions of Steam libraries. Shares Indie and Simulation with That's not my Neighbor.

    WARNING. Stay inside. Lock your doors. Close the blinds. Only let humans in. Eliminate all Visitors. An anxiety horror about paranoia in the End of Times.

    2025IndieSimulation14.99 USDDeck PlayableSteam ↗

Cheaper alternatives

Games in the same vein priced at least 40% below That's not my Neighbor at current Steam store prices.

  1. POSTAL 2

    WHY THIS

    Priced ~67% under That's not my Neighbor on Steam right now. Shares Indie and Adventure with That's not my Neighbor.

    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?

    2012ActionIndieAdventure0.99 USDDeck VerifiedSteam ↗
  2. Milk inside a bag of milk inside a bag of milk

    WHY THIS

    Priced ~50% under That's not my Neighbor on Steam right now. Shares Indie and Adventure with That's not my Neighbor.

    A short story about what sort of challenges everyday little things can be. Help the girl buy milk, be the first not to disappoint her.

    2020IndieAdventure1.49 USDDeck PlayableSteam ↗
  3. Blood and Bacon

    WHY THIS

    Priced ~67% under That's not my Neighbor on Steam right now. Shares Adventure and Casual with That's not my Neighbor.

    This Co-op Shooter , has Day and Night levels, multiple maps, players will take on 25 enemy types and numerous bosses, like Gargantuan Monsters and Minibosses every 10 days as you explore, shoot and run for your life against the onslaught of porcine monstrosities.

    2016ActionAdventureCasual0.99 USDSteam ↗
  4. Peggle Deluxe

    WHY THIS

    Priced ~67% under That's not my Neighbor on Steam right now. Shares Casual with That's not my Neighbor.

    Take your best shot with energizing arcade fun! Aim, shoot, clear the orange pegs, then sit back and cheer as 10 whimsical teachers guide you to Peggle greatness.

    2007Casual0.99 USDDeck PlayableSteam ↗
  5. shapez

    WHY THIS

    Priced ~67% under That's not my Neighbor on Steam right now. Shares Indie and Simulation with That's not my Neighbor.

    shapez is an easy-going, minimalistic factory building game about the automation of shapes through extraction and satisfying production lines. Adapt to increasingly complex shapes and grow your factory across an infinitely expanding map. Your only limitation is your creativity!

    2020StrategyIndieSimulation0.99 USDDeck PlayableSteam ↗
  6. Shower With Your Dad Simulator 2015: Do You Still Shower With Your Dad

    WHY THIS

    Priced ~67% under That's not my Neighbor on Steam right now. Shares Indie and Simulation with That's not my Neighbor.

    "Shower With Your Dad Simulator 2015: Do You Still Shower With Your Dad?" is a fast paced shower-simulation where you shower with your 8-bit dad.It's good, clean fun!

    2015ActionIndieSimulation0.99 USDDeck VerifiedSteam ↗
  7. Insaniquarium Deluxe

    WHY THIS

    Priced ~67% under That's not my Neighbor on Steam right now. Shares Casual with That's not my Neighbor.

    The craziest aquarium game ever! Tend to your fish, keep them happy and they'll reward you with coins and jewels. Buy tank upgrades or egg parts which hatch different in-tank pets. These pets can help you feed your fish, collect coins, or even protect against the aliens that will invade your tank.

    2006Casual0.99 USDDeck PlayableSteam ↗
  8. Montaro

    WHY THIS

    Priced ~67% under That's not my Neighbor on Steam right now. Shares Indie and Casual with That's not my Neighbor.

    Montaro is a DOGE.

    2016IndieCasual0.99 USDDeck PlayableSteam ↗

Free alternatives

Free-to-play games that recommended players of this title also tend to enjoy.

  1. Doki Doki Literature Club!

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and Casual with That's not my Neighbor.

    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.

    2017IndieFree To PlayCasualFreeDeck PlayableSteam ↗
  2. Life is Strange - Episode 1

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Adventure with That's not my Neighbor.

    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.

    2015ActionAdventureFreeDeck PlayableSteam ↗
  3. Helltaker

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and Adventure with That's not my Neighbor.

    Helltaker is a short game about sharply dressed demon girls.

    2020IndieAdventureFree To PlayFreeDeck PlayableSteam ↗
  4. Ultimate Custom Night

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie with That's not my Neighbor.

    Welcome to the ultimate FNAF mashup, featuring 50 selectable characters and custom difficulties!

    2018ActionIndieFree To PlayFreeSteam ↗
  5. Bongo Cat

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and Simulation with That's not my Neighbor.

    Bongo cat needs your help. Bongo cat needz more hatz!!! Every time you press a key, Bongo cat will punch your taskbar. Type, click, play, work to collect more points. Which hats will you find?

    2025IndieSimulationMassively MultiplayerFreeDeck PlayableSteam ↗
  6. ENA: Dream BBQ

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and Adventure with That's not my Neighbor.

    Experience surreal environments and inexplicable characters as ENA in a new wild world.

    2025IndieAdventureFreeDeck VerifiedSteam ↗
  7. The Murder of Sonic the Hedgehog

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and Simulation with That's not my Neighbor.

    Sonic the Hedgehog...was murdered!? Get to the bottom of the mystery in this brand-new adventure!

    2023IndieSimulationFree To PlayFreeDeck PlayableSteam ↗
  8. Indigo Park: Chapter 1

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and Adventure with That's not my Neighbor.

    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.

    2024ActionIndieAdventureFreeDeck PlayableSteam ↗

Frequently asked about That's not my Neighbor

Does That's not my Neighbor run on Steam Deck?
That's not my Neighbor is rated Playable on Steam Deck — it runs, but expect some manual adjustments (control remapping, text size, or graphics settings) for the best experience.
How much does That's not my Neighbor cost?
That's not my Neighbor is listed on Steam at 2.99 USD (current store price; Steam sales may reduce this temporarily).
What games are most similar to That's not my Neighbor?
Based on Steam play patterns and shared genres/tags, the games most often recommended alongside That's not my Neighbor are Sasaeng | 사생, Rabid Shift, Adopt Me Please.
Who developed That's not my Neighbor?
That's not my Neighbor was developed by Nachosama Games.

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 That's not my Neighbor.

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24 Games Like That's not my Neighbor — Ranked for 2026 · imho.run