Kill Infinite Zombies Guide: First steps when you join
About
OverviewKill Infinite Zombies is a Roblox survival game where you hold off endless hordes of 500 or more zombies by building turrets, barricades, and traps. Up to 25 players can team up in one session to construct a fortress and push through as many waves as possible. This guide covers how to get started, how the class system works, and how to build toward the game's long-term goals.
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First steps when you join
Step
When you enter the game for the first time you automatically earn the Welcome badge. Before the action starts, open the in-game code screen and enter the code listed on the game's page — codes can only be used once and expire, so do it early. The game supports up to 25 players in a single session, so invite friends before you start building.
- Join the game the Welcome badge is awarded automatically on your first visit.
- Open the code screen enter the code from the game's page to claim your reward before it expires.
- Invite teammates fill the session with up to 25 players before the first wave hits.
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Building and defending your fortress
Tips
Waves grow larger as they progress, so set up your defensive layer before the pressure builds. Each type of structure has a different job, and mixing them together is far more effective than relying on only one.
- Use barricades to funnel zombies into narrow corridors so your other defenses hit more targets.
- Cluster turrets near entry points so their automatic fire covers the highest-traffic areas.
- Lay traps along the paths zombies walk so they take damage before they ever reach your barricades.
Wave milestones worth aiming for
Tips
Badges mark your progress through the wave count in big jumps. Use the early milestones as short-term targets and the later ones as reasons to keep a long-running session going.
- Wave 10
- Wave 25
- Wave 50
- Wave 100
- Wave 250
- Wave 500 / 1,000 / 2,500 / 5,000
Glossary
Glossary- Wave
- A single surge of zombies that the team must survive; each wave that follows is larger than the last.
- Turret
- A placeable structure that automatically shoots zombies that come within its range.
- Barricade
- A barrier used to block or redirect zombies, narrowing their path toward your defenses.
- Trap
- A placed device that damages zombies when they walk over or into it.
- Class
- One of eleven selectable roles, each with its own abilities; unlocking a class earns a badge.
- Anomaly
- A limited-time class that can only be unlocked during its availability window.
Common questions
FAQHow many players can join one session?
Up to 25 players can be in the same session at once.
How do I earn the Top Daily Killer badge?
You need to hold the top spot on the daily kill leaderboard at any point during that day, with at least 3,000 zombie kills to your name.
What happens if I miss the Anomaly class?
Anomaly is a limited-time class, so once its availability window closes it cannot be unlocked.
Where do I enter a code?
There is a code input screen inside the game itself. Each code works only once per account, and codes can expire, so redeem any active code as soon as you start playing.
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