Defend Bunker from Zombies Controls & Keybinds Reference
Master movement, combat, building, and interact inputs before your first night wave.
Sloppy inputs lose nights faster than weak classes in Defend Bunker from Zombies. Bunker Corp! uses standard Roblox FPS / third-person conventions with extra build and interact actions for walls, traps, and survivor management. This reference covers PC and mobile layouts, combat tips, construction mode, and settings that help during day loot / night waves — cross-linking Getting Started, Base Building, and How to Survive when mechanics matter more than keys.
Roblox allows rebinding in some experiences; values below reflect default layouts common on PC — verify in-game Settings if a patch changes labels (Updates).
PC controls (default)
| Action | Default input | Notes |
|---|---|---|
| Move | W A S D | Hold shift to sprint if enabled |
| Jump | Space | Vault low obstacles on loot routes |
| Look / aim | Mouse | Lower sensitivity for headshots on elites |
| Primary fire | Left click | Class weapons (Medic kits, Zeus abilities, etc.) |
| Alternate / aim | Right click | ADS or secondary depending on weapon |
| Reload | R | Reload before night siren |
| Interact | E | Rescue survivors, open chests, use stations |
| Build mode | B or UI button | Placing walls/traps — confirm in Settings |
| Rotate piece | R / mouse wheel | Layout precision in Base Building |
| Inventory | Tab or I | Manage wood, food, fuel stacks |
| Emote / ping | T or G | Multiplayer callouts |
If B does not toggle build, open the on-screen Build icon — mobile-first UI sometimes hides hotkeys until unlocked in tutorial.
Mobile controls
| Action | Typical touch | Tips |
|---|---|---|
| Move | Left virtual stick | Use claw grip for jump + aim |
| Look / aim | Drag right side | Lower sensitivity in Roblox settings |
| Fire | Tap / dedicated button | Fatigue builds on long nights — rest hands between waves |
| Jump | Button near stick | |
| Interact | Context prompt | Tap quickly on escort missions |
| Build | UI hammer icon | Pinch-zoom camera for trap placement |
| Inventory | Backpack icon | Sort wood before dusk |
Mobile redeemers typing Codes should disable autocorrect in system keyboard settings — underscores in UPDATE_01 break easily.
Combat control habits
Pre-night: Reload, refill abilities, equip role-appropriate tool. Medic players stay near anchor; Falcon / mobility classes (community naming includes Talcon) roam for leaks — see Tier List for role ideas with caveats.
During waves:
- Strafe along walls, never backward into pits.
- Crouch if available to stabilize aim on PC.
- Ping elites before burning Zeus-style AoE on single targets.
- Melee only when stamina and horde size allow — read class range in Shop tooltips.
Ability keys vary by class — after unlocking, test in daytime on dummies or weak spawns to avoid fat-fingering during real sieges (How to Survive).
Building and crafting inputs
Build mode shares DNA with other Roblox survival titles:
- Enter build (B or UI).
- Select wall, trap, or farm blueprint.
- Preview ghost — rotate for choke alignment.
- Confirm placement if wood/fuel costs auto-deduct.
- Cancel with right click or back button to avoid wasting wood (Resource Management).
Mis-clicks cost daylight — slow down near sunset.
Interact-heavy systems
Survivor rescue: Hold or tap E when prompt appears; escort using forward-only movement to avoid kiting zombies into bunker (Survivors Guide).
Generators / stoves: Interact to refuel or load food; assign key muscle memory before nights.
Shop / codes: Menu-driven, not keybound — open Shop, scroll to codes box for UPDATE_01 and FREEPOTIONS (How to Redeem Codes).
Camera and settings recommendations
- Field of view: Slightly higher if supported — better peripheral breach detection.
- Sensitivity: Lower for ranged classes (Soldier, Rocketeer in tier talk), moderate for roamers.
- Graphics: Stable FPS beats max shadows; night fights need consistent frame time.
- Audio: Turn zombies footsteps up; audio cues telegraph flanks when power fails.
Multiplayer communication
Roblox text chat or external Discord (Links) replaces voice when unavailable. Bind emote/ping to muscle memory for “help east” callouts if voiceless.
Practice drill (5 minutes/day)
- Place and rotate ten wall segments in build mode.
- Reload-cancel after empty mag.
- Interact spam on chest + generator dummy targets.
- Sprint-loot route to farm and back before timer ends.
Repeat until inputs feel automatic — then push higher waves.
Related guides
- Getting Started — tutorial flow and video walkthrough
- Base Building — what to do with build mode
- How to Survive — combat positioning
- Codes Hub — Shop menu redemption
Frequently Asked Questions
Quick answers to the most common questions.
How do I enter build mode in Defend Bunker from Zombies?
On PC, press B or use the Build UI button if hotkeys are locked until tutorial completion. Mobile uses the hammer icon in the HUD.
Can I rebind keys?
Roblox supports rebinding in the client settings for some experiences. Check Settings both in Roblox and in-game for duplicate layers.
What key interacts with survivors and chests?
Default PC interact is E when the prompt appears. Mobile shows a context button near the object.
Why can I not place traps?
You may lack wood, be outside build zones, or need to unlock the blueprint. Check costs in Resource Management and Base Building guides.
Are mobile controls viable for night waves?
Yes with adjusted sensitivity and UI layout. Many players use mobile for looting and PC for aiming-heavy classes — both work solo if practiced.
Where do I redeem codes with the keyboard?
Codes are entered in the Shop menu text box, not a gameplay keybind. Open Shop and scroll to the redeem field.