IMHO.

Free games like Undead Development

Below are 8 free-to-play Steam games similar to Undead Development, ranked by player overlap and content similarity. No purchase or Steam login required to view the list. Every pick is a full free-to-play title — not a demo, trial, or time-limited giveaway. imho.run's catalogue refreshes daily, so newly free or newly popular titles surface here without manual editing.

Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Undead Development page.

Ranked picks

  1. 1
    Ultimate Custom Night — Steam game cover

    Ultimate Custom Night

    Free-to-play alternative to Undead Development — no purchase or trial window. Shares Action and Indie with Undead Development.

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

    2018ActionIndieFree To PlayFreeFree to playSimilar games →
  2. 2
    The Riftbreaker: Prologue — Steam game cover

    The Riftbreaker: Prologue

    Free-to-play alternative to Undead Development — no purchase or trial window. Shares Action and Indie with Undead Development.

    The Riftbreaker: Prologue allows you to experience the events taking place before the story campaign of the main game. Explore an entirely new world. Gather resources. Build up a base. Defend yourself from thousands of alien creatures.

    2020ActionStrategyIndieFreeDeck PlayableFree to playSimilar games →
  3. 3
    Unturned — Steam game cover

    Unturned

    Free-to-play alternative to Undead Development — no purchase or trial window. Shares Action and Indie with Undead Development.

    You're a survivor in the zombie infested ruins of society, and must work with your friends and forge alliances to remain among the living.

    2017ActionIndieAdventureFreeDeck PlayableFree to playSimilar games →
  4. 4
    Muck — Steam game cover

    Muck

    Free-to-play alternative to Undead Development — no purchase or trial window. Shares Action and Indie with Undead Development.

    Muck is a survival-roguelike. Collect resources, find items & build a base to survive for as long as you can.

    2021ActionIndieAdventureFreeDeck PlayableFree to playSimilar games →
  5. 5
    Totally Accurate Battlegrounds — Steam game cover

    Totally Accurate Battlegrounds

    Free-to-play alternative to Undead Development — no purchase or trial window. Shares Action and Indie with Undead Development.

    Grab your balloon crossbow and trusty inflatable hammer, because things are about to get wobbly! Be the last weirdo standing in the world-leading physics-based Battle Royale game.

    2018ActionIndieFree To PlayFreeDeck PlayableFree to playSimilar games →
  6. 6
    Cry of Fear — Steam game cover

    Cry of Fear

    Free-to-play alternative to Undead Development — no purchase or trial window. Shares Action and Indie with Undead Development.

    Cry of Fear is a psychological single-player and co-op horror game set in a deserted town filled with horrific creatures and nightmarish delusions. You play as a young man desperately searching for answers in the cold Scandinavian night, finding his way through the city as he slowly descends into madness.

    2013ActionIndieAdventureFreeFree to playSimilar games →
  7. 7
    Fallout Shelter — Steam game cover

    Fallout Shelter

    Free-to-play alternative to Undead Development — no purchase or trial window. Shares Simulation with Undead Development.

    Fallout Shelter puts you in control of a state-of-the-art underground Vault from Vault-Tec. Build the perfect Vault, keep your Dwellers happy, and protect them from the dangers of the Wasteland.

    2017SimulationRPGFree To PlayFreeDeck VerifiedFree to playSimilar games →
  8. 8
    No More Room in Hell — Steam game cover

    No More Room in Hell

    Free-to-play alternative to Undead Development — no purchase or trial window. Shares Action and Indie with Undead Development.

    The chances of you surviving this all out war of society and the undead are slim to none. Already, there are millions of the walking dead shambling about, searching for food to eat. There's no known cure. One bite can possibly end it all for you. However, you aren't alone in this nightmare.

    2013ActionIndieFree To PlayFreeDeck PlayableFree to playSimilar games →