RoleCraft: A New Dawn updated to version 0.7
Requires 6GB of ram to avoid crashes and 5-10 minutes loading time (longer on first run) is NOT abnormal.
Type in the modpack name (RoleCraft: A New Dawn) or paste the following url into the search box.
Finally, click Install at the bottom right of the launcher after you select RoleCraft: A New Dawn from the list on the left. The launcher will handle everything else!