At first, I'd like to say thanks to everyone who gave me enough feedback to come up with this final suggestion.
The goal is to add item/money sinks to stabilize the economy and enhance PvM.
Step 1: Add Duel Arena Tickets, that can be bought for 100k. Players will need to pay with one duel arena ticket in order to do one stake. The system will be the same as in the warrior's guild, where the ticket disappars from your inventory when you accept the stake.
This system is way more simple than adding percentage stake fees and everyone will understand that.
Duel Arena will be an expensive place where you can either win big, or go home losing everything. Some stakers will sell their items in order to keep stacking resulting in more items getting brought to the normal players.
Step 2: Now that items are cheaper than before, more people will afford them. To make sure that items leave the game, the game itself needs to be more dangerous. This can be done by making
bosses harder (in a creative way) and lowering the timers of when
items appear/disappear. On top of that, the guardian angel needs to be removed. People will die more often. They will lose items more often. But they also will use more potions and food more often because the bosses are harder to kill now resulting in a continious demand of supplies.
When items get out of the game, the price will go up and more people will consider doing PvM again.
Step 3: Buff/rework the items that are supposed to be strong to attract more players to get and use them again. Now that many things are harder to get, less items will get into the game compared to now.
Step 4: Add new challenging dungeons, monsters and bosses where people need to team up in order to be efficient and/or use alot of ressources (if they go solo).
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