EA has said more than 250,000 creatures have been created and uploaded to its Spore community website in one day.
The publisher claims more than two are being shared every second, and at its peak there were 1000 creatures changing hands every minute.
"The response to the Spore Creature Creator has been overwhelming," said Lucy Bradshaw, executive producer for Spore at Maxis.
"The creativity and passion that the community is putting into their creatures is spectacular. The development team has spent the last 24 hours checking out the amazing creations racing in from all corners of the globe - with peak volume hitting more than 1,000 creatures being shared a minute."
The Spore Creature Creator was released on 17th June and costs either GBP 5 for the full version or can be downloaded in trial form for free.
Creatures appear in a huge index on the Sporepedia section of the community site and can be saved as a small file and then quickly imported into the Spore Creature Creators all over the world.
However, some accounts have come under fire for breaching the Terms of Service for rude or inappropriate content. EA has issued written warnings to those doing so.
The full Spore game is due out for PC on 5th September.