Sega is to publish a newly announced Double Fine game called The Cave.
Set for a digital release on consoles and PC in early 2013, it's described by Sega as an "odd and compelling" adventure game.
The publisher said: "If you enjoy rappelling, spelunking and dark rocky caverns then be prepared to be disappointed! And then intrigued. And then AMAZED. And then disappointed again, but only for a minute. Then relieved, amused, bewildered, excited, and satisfied. In that order.
"Your first clue that The Cave is a place like no other will come just after you assemble your team of three unlikely adventurers - each with their own unique personalities and skills - and stumble across a subterranean amusement park and a medieval castle, not to mention a fully armed and ready to launch nuclear-tipped ICBM."
Double Fine's Ron Gilbert said: "The concept of The Cave has been bouncing around in my head for many, many years, and then the little voices that tell me to do things said it was time to make the game. I'm thrilled to be working with amazingly talented folks at Double Fine and ecstatic that the team at Sega believes in adventure games and quirky ideas."
Sega's senior VP of digital business Haruki Satomi added: "As Sega continues to expand our digital gaming catalogue, we've put a lot of effort into finding truly original experiences we can help bring to life. Both Ron and the team at Double Fine are experienced and deeply creative, and we value the chance to work with them on The Cave."