Block DLC from being purchased/downloaded if owner doesn't have the core addon
Describe a feature you would like to have added to GmodStore
Please make it so that DLC items require the core addon to be purchased/assigned to the owner before they're available for purchase.
In case of poorly written addons, that handle DLC's in a non-modular way (meaning there's little work needed to be done to make the work DLC stand-alone), people could just buy those addons without owning of the core addon, adjust it themselves, and just run it entirely separately without a core addon.
In addition, consider a scenario where: A leaker downloads the core addon, leaks it and gets banned.
Some time after he gets banned, a DLC for that addon gets released - The leaker sees it, and decides to sign up his alt for another DLC leak.
Now, instead of spending some additional funds on the core addon, he can just skip that hoop and get the DLC straight away. It doesn't make any sense.
Every major market either disallows downloading of the dlc product without owning of the core product, or disallows purchasing dlc altogether under that condition.