Adventure Game Studio was originally developed by Chris Jones
The latter versions and engine ports to various platforms are product of collaborative work of the following people (in alphabetic order):
Benjamin Penney
Benoit Pierre
Bernhard Rosenkraenzer
Cristian Morales Vega
Edward Rudd
Ferdinand Thiessen
Francesco Ariis
Gilad Shaham
Ivan Mogilko
Janet Gilbert
Jochen Schleu
Joe Lee
John Steele Scott
Martin Sedlak
Matthew Gambrell
Michael Rittenhouse
Morgan Willcock
Nick Sonneveld
Ori Avtalion
Paul Wilkinson
Per Olav Flaten
Piotr Wieczorek
rofl0r
Ryan O'Connor
Scott Baker
Shane Stevens
Shawn R. Walker
Stefano Collavini
Steve McCrea
Steven Poulton
Sunit Das
Tobias Hansen
Tom Vandepoele
Tzach Shabtay
The default icon bar graphics were done by Teemu Eramaa (teemue@nic.fi)
Windows editor original splash design by abstauber
Windows editor icons by Klaus
Blank Game template created by AGA
Sierra-style game template originally worked on by Rui "Trovatore" Pires, enhanced with the new art by ProgZmax, CaesarCub, Hobo, Selmiak and Jim Reed.
LEC 9-verb template by abstauber
Verb Coin template by Electroshokker, graphics by Misj
Lightweight BASS template by Bjorn Ludwig
Hq2x and Hq3x scalers by Maxim Stepin
Hi-colour fade out/in routines by Matthew Leverton
Sprite anti-aliasing code by Michael Bukin
Editor uses irrKlang .NET audio player (https://www.ambiera.com/irrklang)
Graphics and sound are courtesy of the Allegro graphics library by Shawn Hargreaves and many others. You can get it at https://sourceforge.net/projects/alleg/
Script editor component is scintilla by Neil Hodgson. You can get it from https://www.scintilla.org
GIF loading by Magick.Net (http://www.imagemagick.org/)
TrueType font display uses ALFont by Javier Gonzalez and the Freetype project
Windows engine uses libcda CD player by Peter Wang.
MP3 player is almp3 by Javier Gonzalez and the FreeAmp team. It uses the mpg123 MP3 decoder
OGG player is alogg by Javier Gonzalez, using the Ogg Vorbis decoder, which is available from https://www.xiph.org/
OGG Theora player is APEG by Chris Robinson, using the Ogg Theora decoder, which is available from https://www.xiph.org/
DUMB MOD/XM/S3M/IT player, (C) 2001-2005 Ben Davis, Robert J Ohannessian and Julien Cugniere. You can get it from http://dumb.sourceforge.net/
Thanks to all the AGS beta testers for all their suggestions and bug reports - Cornjob, AGC2, AGA, Relight, c_leksutin, Spyros and the rest of the team.