Seems we are building quite a collection of abandoned Tetris conversions, now with the addition of yet another called Tetrix.
This was recovered from a set of Hungarian disks by Csaba Virag, and was written back in 1987 by two people called Pavai & Virag.
It is completely playable, and there is a second earlier version which is not playable at all.
It is unknown who this was being produced for, if it was for a company or just for fun. Hopefully those involved will see this page and get in touch to shed some light on the development. Was it ever polished up and completed?
Contributions: Csaba Virag