It's driving me nuts that I can't remember, but I saw this trailer that I think was posted here a couple of months ago. It had a steampunk-ish but bright fantasy aesthetic, and it was about managing this giant walking tank as it walked towards the right of the screen, going from place to place, with the occasional battle with another, similar tank. These tanks came in all kinds of designs, and you can zoom inside them and it shows a sort of management kinda gameplay where crew members are walking around doing stuff.

I know...this isn't much to go on, yeah. Anyone know what I'm talking about?