DDMF, based in Freiburg, Southern Germany offer a range of VST plugins you may use within Gig Performer.
Partners
Plugin Developers
Modartt, based in France. offer physically modelled plugins popular with many Gig Performer users.
Commercial Extensions
BOULDEN.digital, based in Kent, United Kingdom, is founded by musician and developer Dave Boulden offering free and paid for extensions for use with Gig Performer.
Free Extensions
@Rank13 has produced a suite of extensions to aide your performance and can be used freely within Gig Performer. You can find more details about his various extensions on the Gig Performer Community forum.
@Vindes has produced a suite of extensions that integrate a few select MIDI controllers and can be used freely within Gig Performer. You can find more details about his various extensions on the Gig Performer Community forum.
@Frank1119 produces a couple of utility extensions that can be used freely within Gig Performer. You can find more details about his various extensions on the Gig Performer Community forum.