Vampirism Mod! Includes a few others too: Vampirism (duh), Guide-API, Backpacks Mod, Tree Chopper, Hwyla, and Xaeros Minimap Mod!
Installing a modpack using the Technic Launcher is easy. If you don't already have the launcher downloaded, visit our download page to get the latest version.
Type in the modpack name (Vamp + more!) or paste the following url into the search box.
Finally, click Install at the bottom right of the launcher after you select Vamp + more! from the list on the left. The launcher will handle everything else!