FOSS gamedev and creative worlds

Hello, this is my 3 map this time it Superskyblock, it contains not one or two of the island and as many as 3, each island has its own secrets and more on where you appear to have no secrets in my skyblock play you need to download the game
http://ompldr.org/vZ3k5eQ <-----------Downolad map
http://minetest.net/forum/viewtopic.php?id=3119 <-----------Downolad game

I attach a screenshot of the subject on the site which I was advised why screenshots are not loaded if there are other ways