No revenue estimate for XBOX — its rating/review counts don't calibrate to sales the way Steam's do. The Steam version is estimated at $1.3M — a different platform, not this one.

Sunless Skies: Sovereign Edition

THE SKIES ARE YOURS Captain a spacefaring steam locomotive, as a new Victorian empire takes to the stars! Lead your hapless crew into trouble – and out of their minds. Barter for barrels of time. Smuggle souls. Pause for cricket and a cup of tea.