You can give brief example of your idea or much more detailed with following information:
- What monsters and how many and how often should be spawned.
- What other elements should be added. Tiles (trees, rocks, buildings) and/or active elements like teleports, chests.
- Location and time.
Place: Inside Library
Time: maybe every week
System msg: Help! Our library is under attack!
Inside library, at random positions, every 5 seconds, warlocks and vampire swords spawn. Event lasts for 10 minutes.
For addition, these monsters will have 0.1% dropchance a key;
Key Name: Unknown Bloody Key
This key will open a chest, which chest is located inside Warlocks Castle,
This chest can be spawned everytime this event starts, or can stay there permantly.
Which chest will open only with Unknown Bloody Key, and inside chest can be a rare item ( maybe a lvl 1k or 2k item ) or a quest item, which quest item will be used for future big quests