Was scrolling through the auto searchable tags, and was saddened when Blades in the dark didn't have its own search function. Is that a thing we could get added?
Games must meet a minimum threshold of popularity before they are listed in the dropdown. See the wiki for more: https://wiki.roll20.net/Looking_for_Group#Create_L
... In the meantime, select "Other Games" and be sure to put the name and/or genre of the game you are playing prominently in the description.