For TADS aficionados, there’s one TADS entry in IFComp this year: Ghosts Within by Kyriakos Athanasopoulos. From ABOUT:
Ghosts Within is a mystery game for TADS 3, created by Kyriakos Athanasopoulos, as part of his Diploma thesis on Interactive Fiction, for the Department of Electrical and Computer Engineering at the University of Patras, Greece! It is the first-ever attempt of the author to create such a game.
Good luck to @Domenico!