We believe that modding can greatly increase the enjoyment players can get out of a game and therefore we have started working towards allowing mods for Game Dev Tycoon.
Currently mods are not allowed in our EULA and unfortunately we had recently some very bad experiences with some community members who thought that it’s okay to not only take our source code and change it but also to host the changed game publicly online. This is not okay.
We want to support modding but it has to be done the right way. We will have more information on how we aim to support modding as soon as we can.