The Monster Factory, in collaboration with Tone Studio, are proud to deliver world-class creature and monster vocalizations for video games, films, and beyond. For nearly two decades, studios have trusted us to bring terrifying beasts, eerie creatures, and unforgettable vocal performances to life with unmatched precision and creativity.

We believe that every project, from indie to AAA, deserves access to legendary creature voices. That’s why we’ve partnered with A Sound Effect to make our renowned collection available to creators everywhere.

Each sound library is crafted with the same care and expertise we bring to our studio sessions:

Recorded at 24-bit/192 kHz using the Sanken CO-100K for maximum fidelity.
Performed by our roster of vocal stunt performers and creature voice specialists.
Designed to inspire fear, awe, and immersion — straight out of the box.

These aren’t just sound effects — they are performances, captured and preserved for your worlds.

We can’t wait for you to be thrilled… or horrified… by what you hear.

Zombie Hordes

Create Your Own Zombie Horde

Zombie Hordes have arrived, and the infection is spreading even faster. This comprehensive sound library features 400 high-quality zombie sounds and contains audio construction blocks which will allow you to create the most insane zombie hordes ever.

Unparalleled Level of Audio Quality for Unparalleled Level of Terror

Recorded at Tone Studio in Montreal by James Duhamel, the Zombie Hordes library offers pristine audio fidelity with a 192 kHz/24-bit sample rate. This, combined with the talents of trusted voice actors and the specific horde behavior makes Zombie Hordes the most unique sound library on the market.

*All sounds are available in mono

Key Features:

• 4 female voices & 4 male voices
• 5 distinct horde behaviors
• 4 unique voice techniques linked to specific zombie vocal archetypes
• Long and short audio loops for more customization options
• Pre-designed horde sounds to cover different sizes:
25 - 50 - 100 - 250 - 500
• Recorded with three Sanken CO 100K

Zombie Apocalypse

Create Your Own Zombie Apocalypse

The Zombie Apocalypse has arrived, and the virus is spreading fast. This comprehensive sound library features 20,000 high-quality zombie sounds, making it the most complete zombie sound collection ever released.

Recorded at Tone Studio in Montreal by James Duhamel, the Zombie Apocalypse library offers pristine audio fidelity with a 192 kHz/24-bit sample rate. This, combined with the talents of trusted voice actors and the increased variety of actions and variations, the layering option to keep your listeners immersed and on edge, makes Zombie Apocalypse the most complete and unique sound library on the market. If it is not the first zombie sound library you have bought, this one will definitely be your last.

*All sounds are available in mono

Key Features:

• 5 female voices & 5 male voices
• 25 distinct actions
• 10 variations per action
• 4 unique voice techniques linked to specific zombie vocal archetypes
• Recorded with one close and one distant microphone
• Layering options for most actions, providing immense customization flexibility