There is a lot of official and community support for Liminal Horror. Enough that we maintain The Liminal Horror Library (https://liminalhorrorlibrary.com/) to catalogue all the different resources out there (we currently have over 436). You can find first party resources under the First Party tag on the Liminal Horror Library.
Not only is there strong community support, but as a development team we are regularly putting out official content.
Einfühlung: A Liminal Horror Starter Scenario
Every house hides secrets…some more sinister than others. 
- In Print (coming soon)
Stopover at the Shelterwood Inn
A free starter adventure. A potential prequel to The Bloom 
Camp Coldwater
One of the Deluxe Edition adventures (available through the patreon). A slasher prequel to The Bloom
- Included in the Liminal Horror Deluxe Edition
Case Files 01
The first issue of the Liminal Horror Anthology zine. Includes Recursive Transit, The Chair, Documentary Mode, and multiple other resources for your tables. 
- In Print (coming soon)
The Mall Remastered
What if The Thing were set in a 1990s mall? 
The Bureau
It’s Gradient Descent meets Control in the office as a modern mega-dungeon. 
The Bloom
What if Twin Peaks had a The Last of Us arc? 
The Parthenogenesis of Hungry Hollow
A modern reimagining of N1 Against the Cult of the Reptile God, but with flesh bees 