Undead Invasion is a side-scrolling shooting game where roguelike replayability merges with tower-defense planning inside a collapsing homeland. Set in a ruined orphanage, this in-game place becomes your headquarters, guiding your every decision with rising tension and limited resources. Randomized upgrades keep each run unpredictable, while expanding weapon options elevate every wave into a tougher stand. The harsh road awaits—step in and defend what remains!
GAMEPLAY: DEFEAT, SURVIVE, AND DEFEND
Core rules in Undead Invasion center on holding ground against escalating waves while juggling upgrades, barricades, and resource spending. Every zombie push grows fiercer, creating a flow of defense, repair, and adaptation that shapes your long-term survival. Defense: Wave-based survival path with resource buying, barricade building, and escalating zombie pressure forcing strategic placements across every defense layer. Playground: Creative space using unlocked items freely, enabling experimentation with traps, weapons, and layouts without death risks interrupting your tactical testing. Then, you need to lean on expanding your weapon collection, reinforce structures, and select upgrades that dictate each run’s pace. Resource gains fuel your purchases, while daily waves add difficulty as new zombie types appear. So, you need to boost your weapons’ power and adapt to various types of them to conquer all undead waves. Victory grows from smart positioning and steady improvement, while failure arrives once your defenses collapse and the orphanage falls.
Combat Commands Click: Attack
[Q]: Switch weapon
[E]: Use a knife
Numpad 1: Use bomb
Fence Icon: Build structures
[R]: Reload
Spacebar: Kick Standout Features Dynamic waves scaling pressure every single day
Extensive traps offering layered defensive depth
Weapon diversity shaping each survival approach
Playground mode expanding creative strategy freedom MORE ZOMBIE-DEFEAT SHOOTING TITLES
Jump into more undead challenges with Undead Corridor, Pew Pew Dose, and Zombie Strike, each offering fresh ways to perfect your zombie-slaying instincts!
About Undead Invasion - Free Online Action Game
🎮 Quick Info: Action Game | ⭐ Rating: 1 plays | 🆓 Free | 📱 Works on PC, Mobile & Tablet | ⚡ No Download Required
Undead Invasion is an exciting and high-quality free online action game available exclusively on CrazyGames-Poki. This premium HTML5 browser game delivers instant entertainment without any downloads, installations, or registrations required.
📂📂 Category:Action
🎯🎯 Platform:Web Browser (HTML5)
💰💰 Price:Free
👥👥 Mode:Single Player
📅📅 Updated:2026-06-16
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Technical Requirements
Browser: Chrome 90+, Firefox 88+, Safari 14+, Edge 90+, or Opera 76+
JavaScript: Must be enabled in your browser settings
Internet Connection: Minimum 3 Mbps for smooth gameplay (5+ Mbps recommended)
Screen Resolution: Minimum 800x600 (1024x768 or higher recommended)
RAM: At least 2GB available memory (4GB+ for optimal performance)
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