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Sorry for the confusing title, I don't really know how to phrase it.

I beta tested a game last week with a pretty fun system. When you have an item, you don't know how many copy of this item you have. This system is called "Dés d'usure" (in frenchFrench, because it will be a frenchFrench game). I translate it into "Wear dice", but I'm unsure.

When you have an item, you don't know how many copy of this item you have. Instead you're given a dice vaguely representing your quantity of the item. After using the item you roll to see if you keep the same quantity, or if you go down a stage (1d10 → 1d8 → 1d6 → 1d4). If you go down a stage from 1d4, you have none left.

Let's give an example. 

The GM says you have "1d10" potions. Now you use a potion, you apply the effect, then you roll 1d10.

  If the result is more than 3, you still have "1d10" potions. But if the result is between 1 and 3, you go down one stage and now only have "1d8" potions.

IfNow that you're at "1d8" potions, if you use another potion, you roll 1d8. If the result is more than 3, you still have "1d8" potions. But if the result is between 1 and 3, you go down a stage: you now have "1d6" potions.

The system goes until 1d4. If you roll between 1 and 3 with 1d4, you don't have any potionpotions left in your bag.

 

So let's say I have "1d10" potions in my bag, how can I calculate the average of how many potion I will have  ?

Long story  : I really want to re-use this system for a homemade rpgRPG. But I'm questioning myself if I keep the "1-3" limit or if I will use a different limit like "1-2". But I wonder how this will modify the probabilities.

Sorry for the confusing title, I don't really know how to phrase it.

I beta tested a game last week with a pretty fun system. When you have an item, you don't know how many copy of this item you have. This system is called "Dés d'usure" (in french, because it will be a french game). I translate it into "Wear dice", but I'm unsure.

Let's give an example. The GM says you have "1d10" potions. Now you use a potion, you apply the effect, then you roll 1d10.

  If the result is more than 3, you still have "1d10" potions. But if the result is between 1 and 3, you now have "1d8" potions.

If you use another potion, you roll 1d8. If the result is more than 3, you still have "1d8" potions. But if the result is between 1 and 3, you now have "1d6" potions.

The system goes until 1d4. If you roll between 1 and 3 with 1d4, you don't have any potion left in your bag.

So let's say I have "1d10" potions in my bag, how can I calculate the average of how many potion I will have  ?

Long story  : I really want to re-use this system for a homemade rpg. But I'm questioning myself if I keep the "1-3" limit or if I will use a different limit like "1-2". But I wonder how this will modify the probabilities.

I beta tested a game last week with a pretty fun system. This system is called "Dés d'usure" (in French, because it will be a French game). I translate it into "Wear dice", but I'm unsure.

When you have an item, you don't know how many copy of this item you have. Instead you're given a dice vaguely representing your quantity of the item. After using the item you roll to see if you keep the same quantity, or if you go down a stage (1d10 → 1d8 → 1d6 → 1d4). If you go down a stage from 1d4, you have none left.

Let's give an example. 

The GM says you have "1d10" potions. Now you use a potion, you apply the effect, then you roll 1d10. If the result is more than 3, you still have "1d10" potions. But if the result is between 1 and 3, you go down one stage and now only have "1d8" potions.

Now that you're at "1d8" potions, if you use another potion, you roll 1d8. If the result is more than 3, you still have "1d8" potions. But if the result is between 1 and 3, you go down a stage: you now have "1d6" potions.

The system goes until 1d4. If you roll between 1 and 3 with 1d4, you don't have any potions left in your bag.

 

So let's say I have "1d10" potions in my bag, how can I calculate the average of how many potion I will have?

Long story: I really want to re-use this system for a homemade RPG. But I'm questioning myself if I keep the "1-3" limit or if I will use a different limit like "1-2". But I wonder how this will modify the probabilities.

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Sorry for the confusing title, iI don't really know how to phrase it.

I beta tested a game last week with a pretty fun system. When you have an item, you don't know how many copy of this item you have. This system is called "Dés d'usure" (in french, because it will be a french game). I translate it into "Wear dice", but i'mI'm unsure.

Let's give an example. The GM says you have "1d10" potions. Now you use a potion, you apply the effect, then you roll 1d10.

If the result is more than 3, you still have "1d10" potions. But if the result is between 1 and 3, you now have "1d8" potions.

If you use another potion, you roll 1d8. If the result is more than 3, you still have "1d8" potions. But if the result is between 1 and 3, you now have "1d6" potions.

The system goes until 1d4. If you roll between 1 and 3 with 1d4, you don't have any potion left in your bag.

So let's say iI have "1d10" potions in my bag, how can iI calculate the average of how many potion iI will have ?

Long story : I really want to re-use this system for a homemade rpg. But i'm questionningI'm questioning myself if iI keep the "1-3" limit or if iI will use a different limit like "1-2". But iI wonder how this will modify the probabilities.

Sorry for the confusing title, i don't really know how to phrase it.

I beta tested a game last week with a pretty fun system. When you have an item, you don't know how many copy of this item you have. This system is called "Dés d'usure" (in french, because it will be a french game). I translate it into "Wear dice", but i'm unsure.

Let's give an example. The GM says you have "1d10" potions. Now you use a potion, you apply the effect, then you roll 1d10.

If the result is more than 3, you still have "1d10" potions. But if the result is between 1 and 3, you now have "1d8" potions.

If you use another potion, you roll 1d8. If the result is more than 3, you still have "1d8" potions. But if the result is between 1 and 3, you now have "1d6" potions.

The system goes until 1d4. If you roll between 1 and 3 with 1d4, you don't have any potion left in your bag.

So let's say i have "1d10" potions in my bag, how can i calculate the average of how many potion i will have ?

Long story : I really want to re-use this system for a homemade rpg. But i'm questionning myself if i keep the "1-3" limit or if i will use a different limit like "1-2". But i wonder how this will modify the probabilities.

Sorry for the confusing title, I don't really know how to phrase it.

I beta tested a game last week with a pretty fun system. When you have an item, you don't know how many copy of this item you have. This system is called "Dés d'usure" (in french, because it will be a french game). I translate it into "Wear dice", but I'm unsure.

Let's give an example. The GM says you have "1d10" potions. Now you use a potion, you apply the effect, then you roll 1d10.

If the result is more than 3, you still have "1d10" potions. But if the result is between 1 and 3, you now have "1d8" potions.

If you use another potion, you roll 1d8. If the result is more than 3, you still have "1d8" potions. But if the result is between 1 and 3, you now have "1d6" potions.

The system goes until 1d4. If you roll between 1 and 3 with 1d4, you don't have any potion left in your bag.

So let's say I have "1d10" potions in my bag, how can I calculate the average of how many potion I will have ?

Long story : I really want to re-use this system for a homemade rpg. But I'm questioning myself if I keep the "1-3" limit or if I will use a different limit like "1-2". But I wonder how this will modify the probabilities.

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Wear dice. Average of How do I calculate how many potion iof an item I'll have in this inventory system?

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