Version: 1.12.2+
After purchasing the file, you will receive 2 worlds of version 1.21.5, one world uses the latest blocks, the other world uses blocks of version 1.12.2

This pack includes:
171 trees + 171 non-leaf trees (342)
210 plants
210 mushrooms
176 creatures (Forest spirits, mushroom men and others)
64 structures (Runes and portals)
1002 total

important to do:
/gamerule randomTickSpeed 0