The Danish toy-maker is "excited" by the enthusiasm of the Minecraft community.
"It is still too early to say whether Minecraft play sets will become a Lego product," said Paal Smith-Meyer, head of the Lego new business group. "It needs 10,000 votes and to go through an approval process to ensure it meets our usual Lego standards."
He added: "We’re really excited to see the fantastic enthusiasm of the Minecraft community. This is what Lego Cuusoo is all about, connecting people’s passion to the Lego brick."
The Lego Minecraft project, which went viral yesterday, is already halfway to the goal with 5,825 votes.
The Cuusoo page has also been tweeted 985 times and has over 3,000 Facebook likes.