Undead Invasion
Undead Invasion is a roguelike zombie survival game where you fight endless waves, buy gear between days, and try to last as long as possible. Permadeath means every run counts.
One clean kick sends a zombie stumbling back, but two more are already closing in. You’ve got a pistol, a crowbar, and just enough cash to grab a health pack before the next wave. Welcome to Undead Invasion.
About Undead Invasion
Undead Invasion is a roguelike endless zombie survival game where you fight wave after wave of undead, buy upgrades between days, and try to survive as long as possible. It’s a fast-paced action game that blends shooting, melee combat, and trap placement with the tension of permadeath. Every run is a fresh test of strategy and reflexes.
If you enjoy bloody pixel action, tough decisions under pressure, and the satisfaction of clawing your way past day 5, this one is for you. The game throws more zombies at you each day, and you’ll need to choose your gear wisely from the shop. It’s a zombie survival game with a rewarding risk-reward loop and a global leaderboard to chase high scores. Pixel graphics and crunchy combat make every short fight feel intense.
How to Play Undead Invasion
Goal
Survive as many days as possible. Each day brings a new wave of zombies. Once you die, you lose everything and start from day 1.
Day-by-Day Progression
- Day 1: A single zombie. Use this round to practice movement and attacks.
- Day 2: Two zombies. Spacing and timing matter more.
- Day 3 and beyond: Three or more zombies arrive. Each new day increases enemy count, speed, and health. The difficulty ramps fast.
Shop and Loadout
After surviving a day, you earn cash based on kills and time survived. The shop opens, letting you buy up to three items before the next wave:
- Training Upgrades: Speed, Strength, Kick Training
- Support Items: First Aid Pack, Banana
- Weapons: Crowbar, M1911, Glock 17, and more
- Defense Tools: Wood Roadblocks, barricades
You also pick your loadout: primary weapon, secondary weapon, melee weapon, and survivor suit.
Permadeath
Death means losing everything. There are no checkpoints. If you want a stress-free experience, try Playground Mode. Otherwise, every day you survive pushes you further up the global leaderboard.
Watch Out For
- Zombies that get too close will bite you. Use kick (Space) or melee (E) to push them back.
- Ammo is limited. Reload (R) wisely and switch weapons (Q) when needed.
- Standing still is a death sentence. Keep moving and kite zombies toward traps.
Tips for Undead Invasion
- Build defenses early
Place barricades and traps before the wave starts to control zombie flow. - Mix your weapons
Carry a fast firearm and a heavy melee so you can handle both crowds and close threats. - Spend your cash each day
Saving too long leaves you weak. Buy upgrades and gear steadily to keep up with the difficulty curve. - Keep moving
Zombies swarm quickly. Staying in one spot is the fastest way to die.
Game Controls
| Action | PC Controls |
|---|---|
| Move | W / A / S / D |
| Shoot | Left / Right Mouse Button |
| Reload | R |
| Switch Weapon | Q |
| Melee Attack | E |
| Kick | Space |
| Use Item Slot 1-9 | Keys 1 - 9 |
| Start New Wave | Tab |
| Pause Menu | Esc |
FAQ
Is Undead Invasion free to play?
Yes, Undead Invasion can be played online for free when the hosted page supports it. No download or registration required.
What happens when I die?
You lose all progress and have to start from day 1. This permadeath mechanic makes every run high-stakes. There is a casual Playground Mode if you prefer a less punishing experience.
Can I play Undead Invasion on mobile?
The controls are designed for desktop keyboard and mouse. Mobile support is not confirmed.
Is there a leaderboard?
Yes, your best run (days survived, kills, income) is ranked on a global leaderboard.
