One way we could bring attention to the game is to use it as a playarea for roleplays you've set up form outside the FH forums. FH is easy to use, easy to modify, and could run on a potato of a pc. These things make the game very accessible and a potentially great tool for rps everywhere.
Have an animal rp you've set up on a forum somewhere? Have FH be a place (optional or otherwise) for your participants to fool around in with a custom map! If you are participating in an animal rp, mention the game to the folk running the rp and see if they'd be interested in using the game as a 3D space for it.
Just make sure to have links to downloads and tutorials ready so folk new to the scene have an easy time obtaining important marking and item packs or other mods essential for the rp you're running or are apart of.