IMHO.

Games like Happy Z-Day

If Happy Z-Day is your kind of game, the closest matches are Blood Waves, The Riftbreaker and Town Of The Dead Life 死寂之城 — 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 Happy Z-Day: Today is supposed to be your daughter's birthday, But something happened in this town. Almost everyone has turn into a Monster. You need to protect your daughter and her birthday party!

2021ActionStrategyIndie2.99 USDWindowsby ImagiT Games
Happy Z-Day — Steam game cover

Players who liked Happy Z-Day also play

Steam players who put hours into Happy Z-Day 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. Blood Waves

    WHY THIS

    Top pick for Happy Z-Day fans by collaborative filtering across millions of Steam libraries. Shares Action and Strategy with Happy Z-Day.

    Hardcore and bloody shooter where you will have to repel the attacks of the living dead using the destroying traps, defensive barricades and also weapon of close and long-range combat.

    2018ActionStrategyIndie9.99 USDSteam ↗
  2. The Riftbreaker

    WHY THIS

    Second-strongest match for Happy Z-Day fans by collaborative filtering across millions of Steam libraries. Shares Action and Strategy with Happy Z-Day.

    The Riftbreaker is a solo or Co-op base-building, survival game with Action-RPG elements for up to 4 players. Hack & slash countless hordes of enemies. Build up your base, craft powerful weapons and research new inventions to survive.

    2021ActionStrategyIndie11.99 USDDeck PlayableSteam ↗
  3. Town Of The Dead Life 死寂之城

    WHY THIS

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

    《Town Of The Dead Life》 is an independent game with the background of eschatology. Players will play the role of one of the few surviving humans in the end of the world, surviving in difficult conditions and trying to change the fate of the world.

    2021StrategyIndieAdventure5.99 USDSteam ↗
  4. Decision: Red Daze

    WHY THIS

    Ranked #4 for Happy Z-Day fans by collaborative filtering across millions of Steam libraries. Shares Action and Strategy with Happy Z-Day.

    Decision: Red Daze is an action RPG with a unique mix of survival and tower defense mechanics. Explore an apocalyptic wasteland, build a safe haven, and lead your team of specialists in a hopeless world, searching for a cure for the infectious disease that turns people into monsters.

    2022ActionStrategyIndie19.99 USDDeck PlayableSteam ↗
  5. Castle Craft

    WHY THIS

    Ranked #5 for Happy Z-Day fans by collaborative filtering across millions of Steam libraries. Shares Action and Strategy with Happy Z-Day.

    Will your castle survive the relentless onslaught, or collapse under pressure? Build, manage resources, and outsmart your foes in a world where everything can be destroyed. Use strategy and creativity to turn the chaos into your greatest advantage!

    2026ActionStrategySimulation19.99 USDDeck PlayableSteam ↗
  6. Grim Nights

    WHY THIS

    Ranked #6 for Happy Z-Day fans by collaborative filtering across millions of Steam libraries. Shares Strategy and Indie with Happy Z-Day.

    Your village must survive for 13 days! Gather resources, expand, explore the underground for riches, and train soldiers to defend against hordes of the undead.

    2018StrategyIndie2.99 USDDeck PlayableSteam ↗
  7. They Are Billions

    WHY THIS

    Ranked #7 for Happy Z-Day fans by collaborative filtering across millions of Steam libraries. Shares Strategy with Happy Z-Day.

    They Are Billions is a Steampunk strategy game set on a post-apocalyptic planet. Build and defend colonies to survive against the billions of the infected that seek to annihilate the few remaining living humans. Can humanity survive after the zombie apocalypse?

    2019Strategy29.99 USDDeck PlayableSteam ↗
  8. Zombie Cure Lab

    WHY THIS

    Ranked #8 for Happy Z-Day fans by collaborative filtering across millions of Steam libraries. Shares Strategy with Happy Z-Day.

    In a world overrun by the undead, build a lab to fight back with science. Manage survivors, gather vital resources, and turn zombies into allies. Defend your base and research the cure to reclaim humanity.

    2025StrategySimulation8.49 USDDeck PlayableSteam ↗

Cheaper alternatives

Games in the same vein priced at least 40% below Happy Z-Day at current Steam store prices.

  1. POSTAL 2

    WHY THIS

    Priced ~67% under Happy Z-Day on Steam right now. Shares Action and Indie with Happy Z-Day.

    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 Happy Z-Day on Steam right now. Shares Indie with Happy Z-Day.

    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 Happy Z-Day on Steam right now. Shares Action with Happy Z-Day.

    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. shapez

    WHY THIS

    Priced ~67% under Happy Z-Day on Steam right now. Shares Strategy and Indie with Happy Z-Day.

    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 ↗
  5. Shower With Your Dad Simulator 2015: Do You Still Shower With Your Dad

    WHY THIS

    Priced ~67% under Happy Z-Day on Steam right now. Shares Action and Indie with Happy Z-Day.

    "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 ↗
  6. Montaro

    WHY THIS

    Priced ~67% under Happy Z-Day on Steam right now. Shares Indie with Happy Z-Day.

    Montaro is a DOGE.

    2016IndieCasual0.99 USDDeck PlayableSteam ↗
  7. Bejeweled® 3

    WHY THIS

    Priced ~67% under Happy Z-Day on Steam right now. Shares Strategy with Happy Z-Day.

    The biggest, brightest Bejeweled ever! Discover all-new ways to play the world’s #1 puzzle game. Find your perfect match with 8 breathtaking game modes that meet all your moods.

    2010StrategyCasual0.99 USDDeck PlayableSteam ↗
  8. Bit Blaster XL

    WHY THIS

    Priced ~67% under Happy Z-Day on Steam right now. Shares Action and Indie with Happy Z-Day.

    Bit Blaster XL is a fast-paced, retro arcade shoot 'em up (shmup) inspired by the classic quarter-munchers of the ‘80s. Easy to pick up, hard to put down, boost, dodge, shoot, and chase high scores in this addictive, old-school action game!

    2016ActionIndieCasual0.99 USDDeck VerifiedSteam ↗

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 with Happy Z-Day.

    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. Ultimate Custom Night

    WHY THIS

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

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

    2018ActionIndieFree To PlayFreeSteam ↗
  3. 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 Happy Z-Day.

    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 ↗
  4. STRAFTAT

    WHY THIS

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

    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 ↗
  5. Counter-Strike:Global Offensive

    WHY THIS

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

    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 ↗
  6. Awaria

    WHY THIS

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

    Awaria is a short game about working in haunted maintenance tunnels.

    2024ActionIndieFree To PlayFreeDeck PlayableSteam ↗
  7. The Expendabros

    WHY THIS

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

    The Expendabros have assembled and set their sights on the forces of ruthless arms dealer Conrad Stonebanks in the forests of Eastern Europe.

    2014ActionIndieAdventureFreeDeck VerifiedSteam ↗
  8. Iron Snout

    WHY THIS

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

    Iron Snout is a fast, colorful and brutal fighting game in which you will be helping a piglet fight for its life against hordes of wolves.

    2016ActionIndieFree To PlayFreeDeck PlayableSteam ↗

Frequently asked about Happy Z-Day

How much does Happy Z-Day cost?
Happy Z-Day is listed on Steam at 2.99 USD (current store price; Steam sales may reduce this temporarily).
What games are most similar to Happy Z-Day?
Based on Steam play patterns and shared genres/tags, the games most often recommended alongside Happy Z-Day are Blood Waves, The Riftbreaker, Town Of The Dead Life 死寂之城.
Who developed Happy Z-Day?
Happy Z-Day was developed by ImagiT 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 Happy Z-Day.

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

24 Games Like Happy Z-Day — Ranked for 2026 · imho.run