A fast-paced co-op zombie survival action game where players fight through hordes of enemies, unlock random power-ups, build different synergies, and escape together as a team.

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Free Demo

Play 99Day Survival Guide Demo

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About This Demo

If you have any issues to report in the game, feel free to join our Discord channel.

DISCORD

The zombie apocalypse is here—fight to survive and break out of the infected zone!
A sudden viral outbreak has turned the city into a living hell. Face endless hordes of zombies and seek survival amidst despair in this top-down, solo or co-op action survival game! Combining roguelike randomization with fast-paced combat, the game supports hardcore solo challenges or 4-player co-op—surviving the apocalypse is never lonely.

■ Endless Zombie Hordes ■
Zombies come in waves, each more ferocious than the last!

  • Dynamic Threat System: Hide by day, rage by night! Nighttime sees more zombies with greater detection.

  • Horde Warning Mechanism: Predict large-scale attacks through ground tremors and distant screams.

  • Ultimate Goal: Break through the encirclement and reach the safe zone before total collapse!

■ Deep Build System ■

  • 30+ Game-Changing Talents to Create Your Own Unique Playstyle!

    • 20+ Card-Based Weapon Types: From fire axes to grenade launchers, each weapon offers a completely different attack style and combat experience.

    • 10+ Powerful Temporary Weapons: From chainsaws to RPG launchers, unleash devastating firepower and mow down massive zombie hordes!

    • Mix, Match, and Build Your Own Playstyle: Go all-in on melee combat, become a trap master, command an army of drones... Combine different talents and weapons to create your own unique builds!

■ 4-Player Co-op Mayhem ■

Surviving Alone Is Tough. Teamwork Is the Key to Survival!

  • Up to 4-Player Online Co-op: Team up with your friends to explore the apocalypse, share resources, take down powerful bosses, and split the epic loot!

  • A Teammate Down? Don't Give Up! Revive fallen teammates and bring them back into the fight. No one gets left behind!

  • More Teammates, More Power! The larger your team, the stronger your team buffs and the more gear you can loot. Build the ultimate squad and mow down zombie hordes together!

■ 14 Unique Characters ■
Each character offers a completely new gameplay experience:

  • Bombproof Officer: Shield forward, but 20% slower movement.

  • Drone Engineer: Aerial reconnaissance, but melee damage halved.

  • Pyro Drunk: Throws Molotovs, drunken state triggers random crits or self-damage.

  • Demolition Expert: Grenades open the path, but watch out—don’t blow yourself up!

  • …plus 8 hidden characters to unlock.

■ Demo Version Provides Seven Trial Maps ■

  • 🏚️ Old Town District: Narrow lanes, abandoned vehicles, easy to defend but hard to attack. Every step could be an ambush.

  • 💧 Sewers: What seems like the safest escape route is actually hiding all kinds of dangerous creatures.

  • (More monsters added continuously…)

■ Intelligent Hordes & Deadly Bosses ■
These aren’t mindless zombies—they learn, evolve, and hunt:

  • Special Infected:

    • Butcher: A ruthless melee killing machine that wields deadly blades to tear players apart.

    • Banshee: Once disturbed, it unleashes a frenzied and relentless assault.

    • Bloat: Explodes violently upon death, dealing area damage to nearby players.

    • Toxic Spitter: Sprays corrosive acid from a distance, leaving players with nowhere to hide.

    • Burrowing Sandworm: Lurks beneath sewers and sandy terrain, waiting to burst out and ambush unsuspecting players.

    • Blood Leech Swarm: Clings to ceilings or hides underwater, splitting into even more creatures when attacked.

    • Mutant Rat Swarm: Led by an infected Rat King, overwhelming players with massive hordes of mutated rats.

    • Hunter: Possesses incredible movement speed, specializing in lightning-fast ambushes and relentless pursuit.

      Over a Dozen Powerful Bosses Await Your Challenge!

      • Fused Zombie: A horrifying creature formed from countless human bodies, possessing devastating melee strength.

      • Worm King: Lurks underground, launching surprise attacks and unleashing deadly sandstorms.

      • Flying Insect King: Moves at incredible speed and summons massive swarms of flying insects.

      • Vengeful Spirit: A dangerous psychic mutant specializing in devastating mental attacks.

      • Bone Spike Experiment: Armed with razor-sharp bone spikes, capable of delivering deadly piercing attacks.

      Face powerful bosses and push your survival skills to the limit! Defeat them, claim rare equipment, and grow stronger with every battle. Become the last survivor in a world overrun by the undead!

    • “Remember: when you hear laughter, it’s already too late…”
      “Since the apocalypse is here, enjoy the last thrilling moments to the fullest!”

Mature Content Description

The developers describe the content like this:

The game contains frequent, intense, and graphic violent content. Players engage in combat with zombie-like enemies using weapons that can cause dismemberment, explosive effects, and leave large amounts of blood and remains in the environment.

System Requirements

    Minimum:
    • Requires a 64-bit processor and operating system
    • OS: WINDOWS® 10 (64-BIT Required)
    • Processor: Ryzen 5 2600x, Core i5 8600 or better
    • Graphics: NVIDIA® GeForce® GTX 960 or AMD Radeon™ RX 460
    • Network: Broadband Internet connection
    • Storage: 2 GB available space
    • Additional Notes: This game is expected to run at 1080p/30 FPS.
    Recommended:
    • Requires a 64-bit processor and operating system
    • OS: WINDOWS® 10 (64-BIT Required)
    • Processor: Ryzen 5 5600X,Core i5 11600K or better
    • Graphics: Radeon RX 6700 XT, Geforce RTX 2070 or better
    • Network: Broadband Internet connection
    • Storage: 2 GB available space
    • Additional Notes: This game is expected to run at 1080p/60 FPS.