In the last few weeks we have done a lot of internal reorganization. Included in this reorganization is the migration of Arsenal's issue tracking to Taiga. Scripting direction has changed as well as we decide to start porting amethyst_core to Legion.
After getting our first POC release for Arsenal out, we haven't stopped working towards getting it ready to make real games. Our next step is integrating scripting support so that you can add game logic.