From a Free Account's point of view, chickens and orc spearman have been removed.
In the past, chickens were plentiful on the Free side, especially in the south of the temple.
Currently, they exist only in the premium area, and, as far as free accounts are concerned, they are only accessible if one accidentally crosses the premium bridge, which is rare without human interference.
In the past, there was an Orc Spearman running freely near the Wasp Tower, it was terrifying, hahaha. There was also a wasp on the ground floor that was removed.
Now, there are only Orc Spearman in the Orc Fortress, accessible only on The Rookie Guard Quest's last mission. This quest can only be started by players of level 5 or lower. This means that the island's old inhabitants (who kept themselves free account) never again fought with the mischievous orc.
Other monsters removed, let's see ... The maze that leads to "Mino Hell", you know? There used to be a Minotaur accompanied by two orcs. Today there is only one orc.
The reason for these removals seems clear to me: making the island safer (or less dangerous) for beginners.
Other changes in this regard include the vegetation wall that horizontally cuts the western side of the island ... This did not exist before the addition of The Rookie Guard Quest. The same goes for the mountains to the east of Hyacinth, there are many trees there, too bad.