Halloween is on a loop with the ghost curse.

Find offerings from the dungeons.
Quell the ghost's wrath.
In the loop Halloween

Explore and cultivate Pumpkins during the day to become stronger and
Prepare for the night attack.
You can skip the raids, but you need pumpkin points.

What you can do with pumpkin points!
1/Unlock weapons
2/Power up your character
3/Unlock new areas.
4/BUY Automatic Pumpkin Growing Machine