(1.) Miguel Novello, https://miguelnovelo.com/ - presenting on a physical interface and art game. (via zoom).
(2.) Thomas Jensen, https://meltykeyboard.wixsite.com/thomasj - presenting a drag and drop ability system.
(3.) Robert Grasso, https://www.robertgamedev.com/ -
presenting a tool that supports infinite replayability.
(4.) Delta_Ark, http://delta.center/ - presenting on virtual game/performance/ai hybrid platforms (if there's time).