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Prepare to defend yourself. Purchase defensive structures, recharge your energy and fight off waves of monsters. Kill bosses and upgrade weapons. Complete the final day and close the portals!
Play Serious Head for free on Lliack, your ultimate destination for online games. Enjoy this exciting HTML5 browser game anytime, no download, no installation required. Whether you're on PC, mobile, or tablet, jump right into Serious Head and experience endless fun, challenges, and entertainment. At Lliack, we feature over 60,000+ free online games, ensuring smooth gameplay and new titles added daily. Try Serious Head now and see why players around the world love it!
WASD = move Left mouse button = shoot Right mouse button = iron sight Mouse wheel or 1-6 = change weapons Space = jump
Follow the on-screen instructions in Serious Head to complete levels, unlock achievements, and challenge your friends. Each game offers unique mechanics and endless replayability.
- Play instantly in your browser - no downloads needed
- 100% free online gameplay
- Works on desktop, Android, and iOS devices
- Powered by top game providers.
- Thousands of other similar games available at Lliack
Shooter
Play Serious Head for free now on Lliack. Serious Head is available to play for free.
Serious Head is playable online as an HTML5 game, therefore no download is necessary.
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If Shooter games are your style, you can find more of them in our Shooter game category. Go for a Shooter games.
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