I would say Kane & Lynch 2 for both quality and sales.pretty bad game and horrible sales.Nier was a pretty big bomb in terms of sales as well,both from square enix(nier was a great game though).
As for bigger released,both Lost Planet 2 and Army of Two:the 40th weny way below the originals and for the publishers it was a massive bomb in there eyes.Neither one of them sold horribly,but compared to the originals they bombed...which is a shame because Lost Planet 2 was great and army of two was an improvement over the first







