- Markus Franz Xaver Johannes Oberhumer https://www.oberhumer.com/
- Author of PySol
- T. Kirk
- Author of Ultrasol
- Skomoroh
- Author of PySolFC
- Brian Lenihan
- macOS package maintainer
- Shlomi Fish
- Continued PySolFC maintenance, port to python 3, test suite (Note: he places all his changes under the Expat licence).
- lufebe16
- Added the Kivy toolkit and all the Android app related code and build procedures.
- Roderik Ploszek
- Fixes and enhancements
- Joe R.
- Many new games and continued PySolFC maintenance and development.
- Mark Andrews
- Galen Brooks galen@nine.com
- Andrew Csillag drew@thecsillags.com
- Michael Foord
- Matthew Hohlfeld hohlfeld@cs.ucsd.edu
- Nicola Larosa
- John Stoneham obijohn99@aol.com
- David Svoboda svoboda@users.sourceforge.net
- ghostofiht - Contributed a new logo design.
- Trueno font under the OFL by Julieta Ulanovsky - used in the logo.
- Remix Icon - used for many icons throughout the app.
- Holger Schäkel Holger@Schaekel-row.de (de)
- Jerzy Trzeciak artusek@wp.pl (pl)