With Don't pay the Ferryman (pbta rpg) I wanted open advancement after char gen, same as world of darkness. How narrow or broad your skillset and focus is up to you. Every 3 advancements you get a Special Quest, high risk/return, negotiated with the Moderator.
Its the groups story, not just players responding to the GM plot. So for Special Quests you choose some of the ingredients and the Moderator works that into existing or oncoming plots. Players can elect to group or separate Special quests.
Likewise your Fate Weave during character creation is created by the players discussing what they've done & what they are interested in, the moderator notes their current and previous situation & weaves the plots around them. It's an interactive and cooperative story.