Hi A0Nasser,
Here are the answers to your queries:
How much time this process will take ?
Depends on the publisher and your game including the technical issues which takes most of the time while setting your game on Steam as well as other platforms.
What you mean about : other platforms ?
Your game will be published on Steam as well as some other platforms like amazon, gamersgate, onlive, uplay, etc. Final details will be provided to you by the publisher.
79 + 100$ for steam or i don't need to pay the steam fee ?
No, there is only a one time fee of 79£ which you will pay after your game's first sale is generated on Steam. All the fees are paid by the publisher themselves (if any). You don't have to pay anything else.
and publisher takes revenue share : did you mean you will be my publisher and will cut some of my revenue ?
I will not be your publisher but we have publishers under our contract who will publish your game on those platforms.
This is how it works:
When a sale is generated,
Game's Price - all the taxes - Platform's share = Publisher's Revenue
They will then send you your share % from what the publisher gets. Unfortunately I cannot share the numbers here. All the details will be there on the contract.
Cheers,
Sondeep