Bolt Visual Scripting for Unity is rated one of the best assets on the Asset Store. Helping to ease the burden of visual thinkers, designers, and those new to development successfully create games and applications.
The Ludiq Graphs API extends beyond just Bolt, which can allow for creation of other types of plugins as well. We cover all grounds here, as you need to own Bolt in order for these to work anyways.
UNITY + BOLT Current Version: 1.0.1 License: MIT Type: Custom Units Price: FREE
Like a custom event, except returnable. Trigger an event, do whatever logic you want, including running the event as a coroutine. When a return is hit, it will return back to the 'Complete' output on the original trigger. Can easily be chained and nested.