Elon Musk, founder of SpaceX and Tesla, may be working on a secret underground tunnel that runs from his office at SpaceX to the Los Angeles International Airport. He tweeted a picture earlier this month of what looks like the start of the tunnel along with the word “Minecraft,” and a group of Lithuanian Minecraft players saw it as a challenge.

The crew of players spent two days in Minecraft creating an imagining of the tunnel that runs from SpaceX to LAX and posted a timelapse of the project on YouTube. This was the same crew that built a proposal for a Tesla Gigafactory in Lithuania, which caught the attention of Tesla.

Maybe SpaceX will catch wind of this new Minecraft project and use it as inspiration for whatever secret projects it has going on.

‘Minecraft’ players design Elon Musk’s secret SpaceX Tunnel for him