The Order 1886, with 1.62m retail. Though for a new IP I wouldn't call that "bombing" necessarily, it's still over twice as much as Quantum Break on XBO.
Good remembering, although 1.62M isn't totally bad I would say it is lower than expectation.
I don't believe Shadowfall fell short of commercial expectations, however, selling more than 3 and exactly what 2 did.
Already got that remembered in the previous answer... although I wouldn't say it is a bomb, just a low seller.
And KZ, I just remembered the critical reception on VGC, never checked the sales, so my fault.
Order 1886? A good, but short, game :)
Two remembered before you =p
But yes I liked the game, although the price was higher.
duduspace11 "Well, since we are estimating costs, Pokemon Red/Blue did cost Nintendo about $50m to make back in 1996"
Mr Puggsly: "Hehe, I said good profit. You said big profit. Frankly, not losing money is what I meant by good. Don't get hung up on semantics"
Azzanation: "PS5 wouldn't sold out at launch without scalpers."