Is this game actually ready, or is it a pre-purchase where you pay now and get it when it's done? The splash page seemed to be giving me mixed messages, but de

Is this game actually ready, or is it a pre-purchase where you pay now and get it when it's done? The splash page seemed to be giving me mixed messages, but dearth of screenshots/video makes me think the latter? A bit sketchy to take people's money for a pre-pay for an unfinished game without being entirely clear that's what's happening? Or it obvious to gamers?