Longtime adventure-game fans no doubt recognize Ron Gilbert. The veteran designer was behind genre touchstones including Maniac Mansion and The Secret of Monkey Island. In his latest game, The Cave, seven unique characters have to explore a vast underground world. Sega just announced that it's publishing the downloadable game, which is being developed by Double Fine, and they've released the first trailer showing it in action.

Take a look at the clip to see characters including a monk, knight, hillbilly, scientist, and more flip switches, solve puzzles, and battle monsters. Players will be able to swap between each character at will (after choosing three from the seven), which is critical considering each of them has a unique ability. The hillbilly is able to hold his breath indefinitely, which makes him a great candidate for underwater exploration, while the knight can heroically protect his teammates from harm. Characters are able to unlock specific areas unique to themselves, which certainly makes it seem as though there's a nice amount of replay value, too.

The Cave is due out on the PlayStation Network, Xbox Live Arcade, and various PC download sites in 2013.