99Day Survival Guide

99Day Survival Guide is a top-down action survival game set in a city devastated by a viral outbreak. Play solo or in online co-op for up to four players, fight through zombie hordes and try to break out of the infected zone to reach a safe zone before everything collapses. Roguelike randomization shapes each run, while the threat changes with the time of day: you can hide during the day, but at night more zombies appear and detect you more easily. Ground tremors and distant screams warn of large-scale attacks.

Build your playstyle

The game has more than 30 talents to combine with weapons and other tools. Its 20-plus card-based weapon types include fire axes and grenade launchers, while more than 10 powerful temporary weapons include chainsaws and RPG launchers. You can focus on melee combat, specialize in traps or command drones.

Play in co-op

In online co-op, you and up to three teammates can explore, share resources, fight powerful bosses and divide the loot. You can revive fallen teammates, and larger teams receive stronger team buffs and can loot more gear.

There are 14 unique characters, each with a different gameplay experience. The description names these characters and traits:

• Bombproof Officer: raises a shield while moving 20% more slowly.
• Drone Engineer: provides aerial reconnaissance but deals half melee damage.
• Pyro Drunk: throws Molotovs; being drunk can trigger random critical hits or self-damage.
• Demolition Expert: uses grenades to clear a path, but risks blowing themself up.

Eight additional characters are hidden and can be unlocked.

Explore the maps

There are 18 maps, each with its own mechanics and survival challenges. Environments, objectives and dangers vary between locations, including:

• Old Town: use narrow streets and abandoned vehicles to outmaneuver zombies in confined spaces.
• Hospital: search for medical supplies and watch for sudden outbreaks in the morgue.
• School: explore the campus and look for trapped female students who need rescuing.
• Quarantine Zone: fight alongside soldiers, defend your position and hold out until the evacuation helicopter arrives.
• Shopping Mall: search the abandoned mall for supplies.
• Docks: navigate shipping containers to find the last evacuation cruise ship.
• Sewers: explore dark, flooded tunnels while watching for dangers beneath the surface.

Face the infected

The zombie hordes grow more ferocious in successive waves. Special infected include:

• Butcher: a melee attacker that uses blades to tear players apart.
• Banshee: launches a relentless assault when disturbed.
• Bloat: explodes on death, damaging nearby players.
• Toxic Spitter: sprays corrosive acid from a distance.
• Burrowing Sandworm: hides beneath sewers and sandy terrain before ambushing players.
• Blood Leech Swarm: clings to ceilings or hides underwater, splitting into more creatures when attacked.
• Mutant Rat Swarm: overwhelms players with mutated rats led by an infected Rat King.
• Hunter: uses its high movement speed to ambush and pursue players.

More than a dozen powerful bosses also await. Defeating them can earn rare equipment, helping you grow stronger:

• Fused Zombie: a creature made from countless human bodies, with powerful melee attacks.
• Worm King: lurks underground, launching surprise attacks and sandstorms.
• Flying Insect King: moves quickly and summons large swarms of flying insects.
• Vengeful Spirit: a psychic mutant that uses powerful mental attacks.
• Bone Spike Experiment: attacks with razor-sharp bone spikes.