[Pay08]

You can buy the rotating banner at the top.

[Rohansi]

You can't. Check the very bottom of this page: https://partner.steamgames.com/doc/marketing/visibility

[scubadude]

You can sponsor a promotion; sales on a bunch of games - but it's not "Brought to you by the cool refreshing taste of Pepsi" it's like "Berlin Game Developers".

[Pay08]

I meant the carousel.

[drewwwwww]

you can’t, actually