HBL was created initially for the Medal of Honor Heroes exploit. An alpha version was released as open source by m0skit0 and ab5000 in November 2009, which ran very simple homebrews. When the Patapon 2 demo exploit was found and leaked, wololo joined the project and proposed to port HBL to this new exploit. The AdvancedPSP forums, which hosted the project, were shut down by the hosting and the project moved to wololo/talk forums. wololo also created a new public SVN repository for HBL at Google Code. Other PSP hackers such as Davee and neur0n joined in to help the development of this port. HBL for Patapon 2 passed to beta version, and can be considered the first useful HBL version, released in March 2010. HBL was subsequently ported to several other user-mode exploits, and also served as base for other projects, like the PRO CFW project.