De la Bête has already been run seven times for Czech players and once internationally. You can look at photos and videos from the previous runs and read some materials about the game design and player experiences.
From the 5th Czech run by Karel Křemel
From the 6th Czech run by Thief of Souls
From the 7th, international, run by Hannyy Karea
David František Wagner: De la Bête – an expensive Beast, in Nordic Larp Yearbook 2014.
Kamil Buchtík: The Cure for the Stuffed Beast, at Nordiclarp.org.
Mo Holkar: The Beast and the Beauty: De la Bête
Mion Films: De la Bête – Portraits from the 4th run