IMHO.

Games like ILL

If ILL is your kind of game, the closest matches are Resident Evil 7 Biohazard, The Beast Inside and Resident Evil 4 — 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.

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About ILL: A realistic first-person action horror game that takes you into a dark fort overtaken by a mysterious entity. Unpredictable monsters, a visceral dismemberment system, and realistic physics create an atmosphere of relentless terror.

2027ActionAdventureWindowsby Team Clout inc.
ILL — Steam game cover

Players who liked ILL also play

Steam players who put hours into ILL 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. Resident Evil 7 Biohazard

    WHY THIS

    Top pick for ILL fans by collaborative filtering across millions of Steam libraries. Shares Action and Adventure with ILL.

    Fear and isolation seep through the walls of an abandoned southern farmhouse. "7" marks a new beginning for survival horror with the “Isolated View” of the visceral new first-person perspective.

    2017ActionAdventure19.99 USDDeck VerifiedSteam ↗
  2. The Beast Inside

    WHY THIS

    Second-strongest match for ILL fans by collaborative filtering across millions of Steam libraries. Shares Action and Adventure with ILL.

    The Beast Inside is a unique, gripping twist on thriller and survival horror. Immerse in the story of long-buried secrets, personal tragedies, and madness. Play as two protagonists bounded by dark heritage. Combat the enemies, solve riddles and experience real terror in the 3D-scanned environment.

    2019ActionIndieAdventure24.99 USDDeck PlayableSteam ↗
  3. Resident Evil 4

    WHY THIS

    Third-strongest match for ILL fans by collaborative filtering across millions of Steam libraries. Shares Action and Adventure with ILL.

    Survival is just the beginning. Six years have passed since the biological disaster in Raccoon City. Leon S. Kennedy, one of the survivors, tracks the president's kidnapped daughter to a secluded European village, where there is something terribly wrong with the locals.

    2023ActionAdventure39.99 USDDeck VerifiedSteam ↗
  4. Outlast 2

    WHY THIS

    Ranked #4 for ILL fans by collaborative filtering across millions of Steam libraries. Shares Action and Adventure with ILL.

    Outlast 2 introduces you to Sullivan Knoth and his followers, who left our wicked world behind to give birth to Temple Gate, a town, deep in the wilderness and hidden from civilization. Knoth and his flock are preparing for the tribulations of the end of times and you’re right in the thick of it.

    2017ActionIndieAdventure19.99 USDDeck PlayableSteam ↗
  5. Follia - Dear father

    WHY THIS

    Ranked #5 for ILL fans by collaborative filtering across millions of Steam libraries. Shares Action and Adventure with ILL.

    Follia – Dear Father is a stealth survival horror that captures the genre’s essence in the halls and rooms of a university campus. Marcus goes in search of his parents, but instead finds himself struggling for his life against deadly horrors that creep around every corner.

    2020ActionIndieAdventure19.99 USDSteam ↗
  6. Maid of Sker

    WHY THIS

    Ranked #6 for ILL fans by collaborative filtering across millions of Steam libraries. Shares Action and Adventure with ILL.

    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!

    2020ActionIndieAdventure4.74 USDDeck PlayableSteam ↗
  7. Ad Infinitum

    WHY THIS

    Ranked #7 for ILL fans by collaborative filtering across millions of Steam libraries. Shares Action and Adventure with ILL.

    When reality is a nightmare, nightmares become real. In this psychological horror game, you fight the terrifying creatures invading your mind. Can you save your sanity?

    2023ActionAdventure3.99 USDDeck PlayableSteam ↗
  8. Blair Witch

    WHY THIS

    Ranked #8 for ILL fans by collaborative filtering across millions of Steam libraries. Shares Adventure with ILL.

    A first-person, story-driven psychological horror game based on the cinematic lore of the Blair Witch. Explore the haunted grounds of the Black Hills Forest in a harrowing investigation that forces you to confront the evil that resides deep in the woods.

    2019IndieAdventure29.99 USDSteam ↗

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.

    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 Action and Adventure with ILL.

    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. Ultimate Custom Night

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action with ILL.

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

    2018ActionIndieFree To PlayFreeSteam ↗
  4. ENA: Dream BBQ

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Adventure with ILL.

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

    2025IndieAdventureFreeDeck VerifiedSteam ↗
  5. Indigo Park: Chapter 1

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Adventure with ILL.

    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 ↗
  6. STRAFTAT

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action with ILL.

    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.

    2024ActionFreeDeck PlayableSteam ↗
  7. The Looker

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it.

    You wake up, alone, on a strangely familiar island full of puzzles that will frustrate and annoy you.

    2022IndieFreeDeck PlayableSteam ↗
  8. Counter-Strike:Global Offensive

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action with ILL.

    Counter-Strike:Global Offensive (CS:GO) expands upon the team-based action gameplay that it pioneered when it was launched over 2 decades ago. CS:GO features new maps, characters, weapons, and game modes, and delivers updated versions of the classic CS content (de_dust2, etc.).

    2012ActionFree To PlayFreeDeck PlayableSteam ↗

Frequently asked about ILL

What games are most similar to ILL?
Based on Steam play patterns and shared genres/tags, the games most often recommended alongside ILL are Resident Evil 7 Biohazard, The Beast Inside, Resident Evil 4.
Who developed ILL?
ILL was developed by Team Clout inc..

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 ILL.

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