What Undead Corridor Is
Undead Corridor is a browser-based zombie survival shooter built around a single, uncompromising premise: you do not run. You hold your ground in a series of narrow hallways and shoot every undead threat that comes at you. There is no exploration, no map to navigate — just you, your ammunition, and an ever-growing wave of zombies filling the corridor ahead.
The difficulty climbs fast. Each hallway you clear sends faster, more aggressive enemies into the next one. Money earned from kills funds your ammo upgrades, and every choice about when to reload, when to kick, and when to switch weapons determines how far your run goes.
Five Game Modes
Each mode changes the rules in a meaningful way. Picking the wrong one for your current skill level will end a run before it starts.
- Corridors: Any noise attracts zombies. Movement and shooting must be timed carefully. You have one attempt only — there are no second chances in this mode.
- Hospital: The zombie count multiplies by 1.5 after each corridor is cleared. Early corridors feel manageable; later ones are overwhelming. Firepower and positioning are everything.
- Defense: Your task is to hold a barricade. Weapons are lost after several deaths, which forces you to stay healthy rather than trading damage freely.
- Rooms: Small, enclosed spaces require precise clearing. Unlike other modes, your weapons carry over after death, making this a good option for learning weapon behavior.
- Street: A sustained wave endurance test. Zombies keep coming without a fixed corridor structure. Weapons are also kept on death, so you can build toward longer runs over multiple attempts.
Training Mode: Before committing to a real run, use the free Training mode to test every weapon without pressure. You can set the zombie count and spawn interval manually.
Controls
| Input | Action |
|---|
| A / D or Arrow Keys | Strafe left or right along the corridor |
| Left Mouse Button | Fire your equipped weapon |
| R | Reload — always do this between waves, not during |
| Spacebar | Kick — pushes back up to two zombies simultaneously |
| Mouse Scroll / Weapon Icon | Switch between your two equipped firearms |
Tip: The kick is not a primary attack — it creates distance. Use it when a zombie closes the gap, then immediately follow up with a headshot while they are staggered.
Weapons & Ammo
Every zombie you shoot earns money: headshots pay $10, body shots $5, leg shots $2. That cash is your resource pool for upgrades. Spending it wisely is the most important skill in the game.
Three ammo types are available for the 5.56x45 caliber:
- 5.56x45D — Default: Balanced damage and range. The reliable baseline for most situations.
- 5.56x45A — Armor-Piercing: Deals extra damage to heavily armored zombies that resist standard rounds. Essential once armored enemies start appearing in higher corridors.
- 5.56x45S — Soft Point: Applies a bleeding effect on hit. Highly effective against grouped targets where the damage-over-time compounds across multiple enemies.
Upgrade order: Put money into better ammo before unlocking a second weapon. A stronger ammo type in your current gun outperforms a weak second weapon in almost every scenario.
Survival Tips
- Aim for the head every shot: headshots double your per-kill earnings and stretch your ammo further — accuracy is a resource
- Reload between threats, not during: starting a reload mid-wave is how most runs end; keep the magazine topped off whenever there is a gap
- Strafe to control spacing: moving sideways delays contact and gives you time to line up clean shots on approaching zombies
- Save the kick for emergencies: it affects at most two zombies, so wasting it on a single straggler leaves you exposed when a cluster closes in
- In Hospital mode, clear corridors fast: the longer you spend in one hallway, the harder the next becomes — speed and clean shooting matter more than caution
- In Corridors mode, shoot only when you must: every shot is noise; wait until a zombie is close enough that a miss is unlikely
FAQ
Q: Do I need to download Undead Corridor?
A: No. It runs entirely in your browser with no install required.
Q: What are the five game modes?
A: Corridors (stealth, one attempt), Hospital (zombie count multiplies 1.5× per corridor), Defense (hold a barricade), Rooms (close-quarters, weapons kept on death), and Street (continuous horde endurance, weapons kept).
Q: Which ammo type should I buy first?
A: Start with Armor-Piercing once standard zombies stop being a threat. Soft Point becomes the better choice in modes with large grouped waves like Hospital and Street.
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