The two online authoring systems, MaLT2 and ChoiCo, were used to develop four GAMMA games. MaLT2 is an online authoring tool for a symbolic expression in mathematical activities that uses programming to create and manipulate dynamic graphical models. ChoiCo is an online authoring tool that allows users to play and create games based on the idea of ‘choices with consequences’. In the ChoiCo game, the aim of the player is to keep making choices as long as possible without being kicked out of the game.
To facilitate the use of the GAMMA games and the authoring tools MaLT2 and ChoiCo and to increase the motivation for developing the games in these tools, MaLT2 and ChoiCo manuals and videos have been developed with instructions and subtitles in the project languages and English.
