A Roblox squad fires glowing blasters at a horde of green zombies charging across a moonlit outpost

Co-op zombie survival on Roblox. Grab your squad, hold Outpost Zero and see how many waves you can last.

Play free on Roblox Join the Discord

Free to play on phone, tablet and PC.

How a run works

Every match is one long fight. The waves keep coming until your whole squad goes down.

  1. Drop in

    Jump in with friends or queue with anyone. You start with a pistol and a few points.

  2. Hold the line

    Zombies pour in every wave, faster and tougher each time. Every hit earns points.

  3. Gear up

    Buy guns off the walls, spin the Zim Box and grab perks between waves.

  4. Beat your record

    Turn the power back on, survive the bosses and push your best wave higher.

Three Roblox players stand back to back firing blasters at zombies closing in

Better with your squad

Cover each other's backs, revive teammates who go down and split the points to gear up faster.

  • Squad up with friends or match with other players
  • Pick a class: Soldier, Medic, Engineer or Scout
  • Revive downed teammates before time runs out
A glowing golden mystery box with a question mark bursts open with weapons

Spin the Zim Box

Feeling lucky? Spend points on the mystery box and walk away with anything from a shotgun to a wonder weapon.

  • Wall-buy guns all over the outpost
  • Upgrade your favorite gun to make it hit even harder
  • Drink perks for more health, faster reloads and quicker revives
A giant green zombie boss stomps toward a squad of Roblox players

Survive the big ones

Every few waves something huge shows up. Focus fire, keep moving and don't get cornered.

  • Boss waves with giant zombies
  • Power-ups like Max Ammo drop from the horde
  • Earn Zim Coins to unlock gear for your next run

Find a squad on Discord

Get update news first, grab codes, post your best runs and find people to play with.

Join the ZimZams Discord