Square Enix has let the cat out of the bag for Heroes of Ruin, an upcoming 3DS game, by leaking a piece of artwork on Facebook ahead of the game's official reveal.

The artwork shows four characters, ranging from a female elf to a cat-man. The artwork suggests a mix of sci-fi and fantasy - characters are wearing armour and using guns.

Can we expect a co-op dungeon crawler, perhaps? We've asked Square Enix for clarification.

The company previously filed the trademark for Heroes of Ruin back in April.