Getting Started with Defend Bunker from Zombies
Learn the day loot / night waves loop, redeem free codes, and pick your first class on Roblox.
Welcome to Defend Bunker from Zombies, a Roblox survival experience published by Bunker Corp! (place ID 134361906638337). You and other players defend a shared bunker against nightly undead assaults while scavenging by day to craft walls, traps, farms, and utilities. This guide walks through your first session — redeeming codes, learning the loop, choosing a class, and setting goals for night one — with links to deeper pages when you are ready.
Watch the embedded video “How to Play & New Codes Guide” mid-article for visual onboarding, then use this page as your checklist.
Install and join
- Open the Roblox experience page on PC, mobile, or supported console.
- Hit Play — public servers match you with other survivors; private servers work for friend groups learning together.
- Complete any on-screen tutorial prompts. Do not skip tooltips about hunger, power, and crafting — they prevent the most common early wipes.
The game is released and live on Roblox, not Steam. Updates ship through Roblox directly; patch summaries appear on our Updates page.
Redeem free codes first
Before grinding, claim active promo rewards on the Codes Hub:
| Code | Reward |
|---|---|
| UPDATE_01 | 100 Shards |
| FREEPOTIONS | 3× X2 + 3× X3 Shards Potions |
Open the in-game Shop → codes box and enter each string exactly. Full steps: How to Redeem Codes. Shards buy Shop progression; potions boost Shard income during active play — details in Shard Rewards Explained.
Join the official Discord (linked on Links) for future code drops Bunker Corp! announces before social reposts.
Understand the day / night loop
Day: Relatively safer scavenging. Gather wood, food ingredients, and fuel; rescue survivors; expand crafting stations. Day ends whether you are ready or not — set a personal timer habit.
Night: Zombie waves spawn against your bunker. Player weapons, crafted walls, traps, and class abilities absorb pressure. Nights test everything you built during daylight.
Failure usually traces to starving, losing power, or under-built defenses — not “bad aim” alone. Read Resource Management and Base Building before blaming weapons.
Choose your first class
Classes define your combat and support role. Gameplay footage confirms kits like Medic (healing/support), Falcon (mobility/targeting — community posts sometimes write Talcon), and Zeus (area lightning damage). Community tier talk also ranks Engineer, Astronaut, Soldier, Pyro, and Rocketeer — treat rankings as player opinion until you test kits yourself on Tier List.
Beginner-friendly picks:
- Medic — forgives positioning mistakes in duo play
- Soldier — straightforward damage if confirmed available in your build
- Engineer — pairs with building-focused squads (verify unlock cost in Shop)
Spend UPDATE_01 Shards on a class that matches how you want to play, not the flashiest skin.
First-hour checklist
Use this ordered list during session one:
- Redeem codes (Codes Hub)
- Skim Controls Guide — especially interact, build, and aim binds
- Craft basic walls before first night (Base Building)
- Place a farm or food source before hunger ticks bite
- Connect fuel/power to lights and critical stations
- Rescue at least one survivor if route is safe (Survivors Guide)
- Stock ammo/repair materials before dusk siren
- Assign squad roles if in multiplayer — one loot, one build, one fight
Multiplayer etiquette
Public lobbies share progression pressure. Do not burn shared wood on cosmetic placements. Call out when you leave for loot routes so nights are not understaffed. Personal Shard potions are yours — activate when you can contribute, not AFK.
When you die (and you will)
Early deaths teach wave timing. Note which side breached, whether power dropped, or if hunger debuff slowed reloads. Respawn loops are part of Roblox survival design — each run should fix one mistake: food today, walls tomorrow, survivors next.
Deep night tactics: How to Survive.
Where to go next
| Topic | Guide |
|---|---|
| Inputs and keybinds | Controls Guide |
| Wood, food, fuel math | Resource Management |
| Traps and layout | Base Building |
| NPC helpers | Survivors Guide |
| Wave strategy | How to Survive |
| Free currency | Codes Hub |
You now have the framework Bunker Corp! built around: loot, craft, survive, spend Shards, repeat smarter. Run one full cycle, then specialize.
Frequently Asked Questions
Quick answers to the most common questions.
Is Defend Bunker from Zombies free on Roblox?
Yes. The experience is free to play on Roblox. Optional Robux purchases and Shards from codes or gameplay provide faster progression.
What codes should new players redeem first?
Redeem UPDATE_01 for 100 Shards, then FREEPOTIONS for potions. Enter both in the Shop codes box before your first long session.
What is the best beginner class?
Medic is a strong support pick confirmed in gameplay; Soldier or Engineer are common community suggestions for damage or building. Test free options before spending Shards.
Can I play solo?
Yes, though online multiplayer helps cover loot and defense roles. Solo players should prioritize farms and walls early per Base Building guide.
Why do I keep dying at night?
Usually hunger, power loss, or weak walls — not weapons alone. Fix resources and defenses before upgrading class cosmetics.
Where do I get new codes after launch?
Check the Codes Hub and join the official Discord linked on our Links page. Developers post codes around updates and milestones.