steam crack question.

i watched video about steam crack and read description.

what i understood is me or my friend at least one person must buy game or dlc.

am i right?

For dbd dlcs , no, you can unlock them

If u want to download and play dbd without buying it, friend must share that game to u, after update dbd and install patched steam and crack steam
If new updata was uploaded to steam, you must use ur save, download update, and apply patch again. Any questions?