IMHO.

Games like Alien Madness

If Alien Madness is your kind of game, the closest matches are Infectonator 3: Apocalypse, Attack of the Earthlings and Slayaway Camp — 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 Alien Madness: Turn humans into idiots and make them kill each other!

ActionStrategyIndieAdventureWindowsby Leolit Games
Alien Madness — Steam game cover

Players who liked Alien Madness also play

Steam players who put hours into Alien Madness 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. Infectonator 3: Apocalypse

    WHY THIS

    Top pick for Alien Madness fans by collaborative filtering across millions of Steam libraries. Shares Strategy and Indie with Alien Madness.

    A campy, crazy pixelart zombie apocalypse arcade sim where you're the bad guy. Drop your virus and spread it across the globe while you unlock a whole horde of bizarre undead to do your bidding.

    2018StrategyIndieSimulation12.99 USDSteam ↗
  2. Attack of the Earthlings

    WHY THIS

    Second-strongest match for Alien Madness fans by collaborative filtering across millions of Steam libraries. Shares Strategy and Indie with Alien Madness.

    Take on Galactoil, a comically dysfunctional intergalactic energy corporation, and its larger-than-life employees in a tactical-stealth game that fuses satisfying strategic gameplay and dark comedy in a quirky single-player story.

    2018StrategyIndie14.99 USDSteam ↗
  3. Slayaway Camp

    WHY THIS

    Third-strongest match for Alien Madness fans by collaborative filtering across millions of Steam libraries. Shares Strategy and Indie with Alien Madness.

    A killer puzzle game where you control Skullface, a psycho slasher bent on slaughtering camp counselors at the title campground. Slide an adorable voxel murderer around hundreds of isometric puzzle levels to squash, flay, and decapitate hapless victims in this darkly comic homage to 80s horror.

    2016StrategyIndieCasual8.99 USDDeck PlayableSteam ↗
  4. Plague Inc: Evolved

    WHY THIS

    Ranked #4 for Alien Madness fans by collaborative filtering across millions of Steam libraries. Shares Strategy and Indie with Alien Madness.

    Plague Inc: Evolved is a unique mix of high strategy and terrifyingly realistic simulation. Your pathogen has just infected 'Patient Zero' - now you must bring about the end of human history by evolving a deadly, global Plague whilst adapting against everything humanity can do to defend itself.

    2016StrategyIndieSimulation14.99 USDDeck VerifiedSteam ↗
  5. Mewgenics

    WHY THIS

    Ranked #5 for Alien Madness fans by collaborative filtering across millions of Steam libraries. Shares Strategy and Indie with Alien Madness.

    Build the ultimate cat army through tactical breeding and send them into deep, challenging turn-based adventures. Draft abilities, collect items, and manipulate genetics across generations in this roguelike tactics game from the creators of The Binding of Isaac and The End is Nigh.

    2026StrategyIndieAdventure29.99 USDDeck VerifiedSteam ↗
  6. Duke Nukem Forever

    WHY THIS

    Ranked #6 for Alien Madness fans by collaborative filtering across millions of Steam libraries. Shares Action with Alien Madness.

    The King arrives with an arsenal of over-the-top weapons, giant explosions and pure unadulterated fun!

    2011Action19.99 USDDeck VerifiedSteam ↗
  7. DRAW CHILLY

    WHY THIS

    Ranked #7 for Alien Madness fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Alien Madness.

    DRAW CHILLY is a hell of an arcade game about Vladimir, his squad, Purgatory, and the Horsemen of the Apocalypse.

    2019ActionIndieCasual4.99 USDDeck VerifiedSteam ↗
  8. Party Hard

    WHY THIS

    Ranked #8 for Alien Madness fans by collaborative filtering across millions of Steam libraries. Shares Action and Strategy with Alien Madness.

    It's 3:00 a.m. Your neighbours are having a loud party. Stop them. Party Hard is tinyBuild's award-winning stealth strategy game about ruining parties by any means.

    2015ActionStrategyIndie1.99 USDDeck PlayableSteam ↗

Free alternatives

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

  1. 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 Alien Madness.

    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 ↗
  2. Helltaker

    WHY THIS

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

    Helltaker is a short game about sharply dressed demon girls.

    2020IndieAdventureFree To PlayFreeDeck PlayableSteam ↗
  3. Ultimate Custom Night

    WHY THIS

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

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

    2018ActionIndieFree To PlayFreeSteam ↗
  4. Bongo Cat

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie with Alien Madness.

    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 ↗
  5. ENA: Dream BBQ

    WHY THIS

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

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

    2025IndieAdventureFreeDeck VerifiedSteam ↗
  6. 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 Alien Madness.

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

    2023IndieSimulationFree To PlayFreeDeck PlayableSteam ↗
  7. 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 Alien Madness.

    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 ↗
  8. Sheepy: A Short Adventure

    WHY THIS

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

    A Short Handcrafted Pixel Art Platformer that follows Sheepy, an abandoned plushy brought to life. Sheepy: A Short Adventure is the first short game from MrSuicideSheep.

    2024IndieAdventureFree To PlayFreeDeck PlayableSteam ↗

More from Leolit Games

Other recommendable Steam games by Leolit Games, ranked by review count so the studio's hits land first.

  1. War Angels

    WHY THIS

    Another title from Leolit Games, the studio behind Alien Madness. Shares Strategy and Indie with Alien Madness.

    Run a war hospital where every choice means someone dies. War Angels is a narrative-driven hospital management game inspired by real-world conflicts, where you must treat patients, manage limited resources, and make difficult moral decisions. There are no good choices, only consequences.

    StrategyIndieSimulationSteam ↗
  2. The Wandering Her

    WHY THIS

    Another title from Leolit Games, the studio behind Alien Madness. Shares Indie with Alien Madness.

    Stitch delicate threads and solve gentle puzzles while restoring pieces of forgotten embroidery. As old photos, worn fabrics, and unfinished patterns resurface, uncover a quiet story of memories, family, and a secret hidden within the threads of time.

    IndieCasualSteam ↗
  3. Desktop Ramen Tycoon

    WHY THIS

    Another title from Leolit Games, the studio behind Alien Madness. Shares Indie with Alien Madness.

    Enjoy managing a cozy cat-run ramen shop right at the bottom of your desktop! Serve up delicious noodles, upgrade your equipment, and expand your feline business—all while you chill, study, or focus on your real-life work.

    IndieSimulationCasualSteam ↗

Plays great on Steam Deck

Valve-Verified or Playable picks from the similar pool — ready to go on Deck out of the box.

  1. Plague Inc: Evolved

    WHY THIS

    Deck Verified — runs on Steam Deck out of the box. Shares Strategy and Indie with Alien Madness.

    Plague Inc: Evolved is a unique mix of high strategy and terrifyingly realistic simulation. Your pathogen has just infected 'Patient Zero' - now you must bring about the end of human history by evolving a deadly, global Plague whilst adapting against everything humanity can do to defend itself.

    2016StrategyIndieSimulation14.99 USDDeck VerifiedSteam ↗
  2. Mewgenics

    WHY THIS

    Deck Verified — runs on Steam Deck out of the box. Shares Strategy and Indie with Alien Madness.

    Build the ultimate cat army through tactical breeding and send them into deep, challenging turn-based adventures. Draft abilities, collect items, and manipulate genetics across generations in this roguelike tactics game from the creators of The Binding of Isaac and The End is Nigh.

    2026StrategyIndieAdventure29.99 USDDeck VerifiedSteam ↗
  3. Duke Nukem Forever

    WHY THIS

    Deck Verified — runs on Steam Deck out of the box. Shares Action with Alien Madness.

    The King arrives with an arsenal of over-the-top weapons, giant explosions and pure unadulterated fun!

    2011Action19.99 USDDeck VerifiedSteam ↗
  4. DRAW CHILLY

    WHY THIS

    Deck Verified — runs on Steam Deck out of the box. Shares Action and Indie with Alien Madness.

    DRAW CHILLY is a hell of an arcade game about Vladimir, his squad, Purgatory, and the Horsemen of the Apocalypse.

    2019ActionIndieCasual4.99 USDDeck VerifiedSteam ↗

Frequently asked about Alien Madness

What games are most similar to Alien Madness?
Based on Steam play patterns and shared genres/tags, the games most often recommended alongside Alien Madness are Infectonator 3: Apocalypse, Attack of the Earthlings, Slayaway Camp.
Who developed Alien Madness?
Alien Madness was developed by Leolit 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 Alien Madness.

For library-aware picks tuned to your specific taste, sign in with Steam on the home page.