Indie game storeFree gamesFun gamesHorror games
Game developmentAssetsComics

This might seem like a stupid doubt but can anybody please explain where or how do i find the yellow sundress to open dimitri chapter 8

You will put it on in the outfit section once you have created it for the important client.

Once you've completed the client, you will be gifted the dress and you can locate it in your Outfit section (under Outfits). You must wear it to continue the next chapter :)