September 2017 is Syfy’s 25th anniversary, so we’re using it as an excuse to look back and celebrate the last 25 years of ALL science fiction, fantasy, and horror, a time that has seen the genres we love conquer the world of pop culture. For us, that means lists! ALL THE LISTS! We’ll be doing two “25 greatest” lists per day all throughout September, looking back at the moments, people, and characters that shaped the last quarter century. So keep checking back. Please note: Our lists are not ranked; all items have equal standing in our brains.
What items in our lists were your favorites? Did we miss something? We welcome respectful debate and discussion, so please let us know in the comments!
In the past 25 years, we at SYFY have seen enough teeth, tentacles, venom, claws, blasts of atomic breath, and unnamed alien appendages to take over spaceships and pirate ships and major metro areas and the entire planet—if not multiple planets. If not the entire universe.
Get on your armor and remember your weapons and anti-venom as you dare navigate this list of the 25 most terrifying monsters ready to party for SYFY’s 25th birthday. Just don’t ask Godzilla to blow out the candles.