So I'm shortly starting my frist ever 5e campaign and I wanted to get a feel for how progression would go. Should I plan a war against the kobolds or would the PCs quickly level out of battling kobolds by the third adventure? Should I plan my epic protagonist to be a CR 29 arch-fiend? Or would it take five years of real-world playing to get the characters ready. And did I need to mess with the XP levels in the book because that's something best done at the outset not mid-campaign when the players are busy working out what spells they want for when they reach level 9 next session, etc.
What I did was to take the XP requirements for each level, the XP budget for an encounter at that level (allowing for that rather hinkey adjustment mechanism depending on the number of monsters), and the do some basic arithmetic to see how many encounters are needed to reach the next level. I also set an average number of encounters per adventure to see how many adventures it would take to reach the next level as well. I did this for Medium and Hard budget adventures per the DMG guide. I didn't do "Deadly" because I don't imagine a campaign normally being made up of Deadly encounters on average. I also didn't do Easy encounters because I think most players find "challenge us by attrition and not allowing rests" to be dull play.
Now I've heard the DMG encounter guidelines are a bit shaky. I also know that there are several assumptions in the below that wont always hold. It's at best and average outcome per the DMG guidelines. What I'm curious about is to see how this matches up with people's experiences. And also any advice from people simply what they personally find good in terms of progression or pitfalls they run into. You don't have to caveat everything with "in my opinion" and "but play how you want" - I'm interested in people's personal takes.
I have a few more numbers on related items I could share as well if this is interesting to people. I can also attach the spreadsheet if people want to poke it do their own calculations for those who don't want to do things from scratch. Anyway, all thoughts welcome - I'm new at this and just trying to plan out a satisfying campaign.
EDIT: To be clear, I'm not at all offended by telling me these numbers are way off if that's the case. They're based on calculations in the DMG. I think my reasoning is sound (probably) but my assumptions I got direct from WotC.
How many encounters / adventures required to reach the next level.
[TABLE="width: 860, align: left"]
[TR]
[TD]Level
[/TD]
[TD]#Medium Encounters
[/TD]
[TD]#Hard Encounters
[/TD]
[TD]#Adventures (Medium)
[/TD]
[TD]#Adventures (Hard)
[/TD]
[/TR]
[TR]
[TD]1[/TD]
[TD]3[/TD]
[TD]2[/TD]
[TD]1[/TD]
[TD]1[/TD]
[/TR]
[TR]
[TD]2[/TD]
[TD]5[/TD]
[TD]3[/TD]
[TD]1[/TD]
[TD]1[/TD]
[/TR]
[TR]
[TD]3[/TD]
[TD]9[/TD]
[TD]6[/TD]
[TD]2[/TD]
[TD]2[/TD]
[/TR]
[TR]
[TD]4[/TD]
[TD]13[/TD]
[TD]9[/TD]
[TD]3[/TD]
[TD]2[/TD]
[/TR]
[TR]
[TD]5[/TD]
[TD]14[/TD]
[TD]9[/TD]
[TD]4[/TD]
[TD]2[/TD]
[/TR]
[TR]
[TD]6[/TD]
[TD]19[/TD]
[TD]13[/TD]
[TD]5[/TD]
[TD]3[/TD]
[/TR]
[TR]
[TD]7[/TD]
[TD]23[/TD]
[TD]15[/TD]
[TD]6[/TD]
[TD]4[/TD]
[/TR]
[TR]
[TD]8[/TD]
[TD]27[/TD]
[TD]17[/TD]
[TD]7[/TD]
[TD]4[/TD]
[/TR]
[TR]
[TD]9[/TD]
[TD]29[/TD]
[TD]20[/TD]
[TD]7[/TD]
[TD]5[/TD]
[/TR]
[TR]
[TD]10[/TD]
[TD]35[/TD]
[TD]22[/TD]
[TD]9[/TD]
[TD]6[/TD]
[/TR]
[TR]
[TD]11[/TD]
[TD]31[/TD]
[TD]21[/TD]
[TD]8[/TD]
[TD]5[/TD]
[/TR]
[TR]
[TD]12[/TD]
[TD]30[/TD]
[TD]20[/TD]
[TD]8[/TD]
[TD]5[/TD]
[/TR]
[TR]
[TD]13[/TD]
[TD]32[/TD]
[TD]21[/TD]
[TD]8[/TD]
[TD]5[/TD]
[/TR]
[TR]
[TD]14[/TD]
[TD]33[/TD]
[TD]22[/TD]
[TD]8[/TD]
[TD]5[/TD]
[/TR]
[TR]
[TD]15[/TD]
[TD]35[/TD]
[TD]23[/TD]
[TD]9[/TD]
[TD]6[/TD]
[/TR]
[TR]
[TD]16[/TD]
[TD]35[/TD]
[TD]23[/TD]
[TD]9[/TD]
[TD]6[/TD]
[/TR]
[TR]
[TD]17[/TD]
[TD]34[/TD]
[TD]22[/TD]
[TD]8[/TD]
[TD]6[/TD]
[/TR]
[TR]
[TD]18[/TD]
[TD]36[/TD]
[TD]24[/TD]
[TD]9[/TD]
[TD]6[/TD]
[/TR]
[TR]
[TD]19[/TD]
[TD]36[/TD]
[TD]24[/TD]
[TD]9[/TD]
[TD]6[/TD]
[/TR]
[TR]
[TD][/TD]
[TD](479)
[/TD]
[TD](317)
[/TD]
[TD][/TD]
[TD][/TD]
[/TR]
[/TABLE]
(For those interested, assumptions are a party size of 4, an average of 4 monsters in an encounter and an average of 5 encounters per adventure. This works out at 96 adventures to reach 20th level with Medium difficulty encounters and 63 adventures at Hard difficulty. )
What I did was to take the XP requirements for each level, the XP budget for an encounter at that level (allowing for that rather hinkey adjustment mechanism depending on the number of monsters), and the do some basic arithmetic to see how many encounters are needed to reach the next level. I also set an average number of encounters per adventure to see how many adventures it would take to reach the next level as well. I did this for Medium and Hard budget adventures per the DMG guide. I didn't do "Deadly" because I don't imagine a campaign normally being made up of Deadly encounters on average. I also didn't do Easy encounters because I think most players find "challenge us by attrition and not allowing rests" to be dull play.
Now I've heard the DMG encounter guidelines are a bit shaky. I also know that there are several assumptions in the below that wont always hold. It's at best and average outcome per the DMG guidelines. What I'm curious about is to see how this matches up with people's experiences. And also any advice from people simply what they personally find good in terms of progression or pitfalls they run into. You don't have to caveat everything with "in my opinion" and "but play how you want" - I'm interested in people's personal takes.
I have a few more numbers on related items I could share as well if this is interesting to people. I can also attach the spreadsheet if people want to poke it do their own calculations for those who don't want to do things from scratch. Anyway, all thoughts welcome - I'm new at this and just trying to plan out a satisfying campaign.

EDIT: To be clear, I'm not at all offended by telling me these numbers are way off if that's the case. They're based on calculations in the DMG. I think my reasoning is sound (probably) but my assumptions I got direct from WotC.

How many encounters / adventures required to reach the next level.
[TABLE="width: 860, align: left"]
[TR]
[TD]Level
[/TD]
[TD]#Medium Encounters
[/TD]
[TD]#Hard Encounters
[/TD]
[TD]#Adventures (Medium)
[/TD]
[TD]#Adventures (Hard)
[/TD]
[/TR]
[TR]
[TD]1[/TD]
[TD]3[/TD]
[TD]2[/TD]
[TD]1[/TD]
[TD]1[/TD]
[/TR]
[TR]
[TD]2[/TD]
[TD]5[/TD]
[TD]3[/TD]
[TD]1[/TD]
[TD]1[/TD]
[/TR]
[TR]
[TD]3[/TD]
[TD]9[/TD]
[TD]6[/TD]
[TD]2[/TD]
[TD]2[/TD]
[/TR]
[TR]
[TD]4[/TD]
[TD]13[/TD]
[TD]9[/TD]
[TD]3[/TD]
[TD]2[/TD]
[/TR]
[TR]
[TD]5[/TD]
[TD]14[/TD]
[TD]9[/TD]
[TD]4[/TD]
[TD]2[/TD]
[/TR]
[TR]
[TD]6[/TD]
[TD]19[/TD]
[TD]13[/TD]
[TD]5[/TD]
[TD]3[/TD]
[/TR]
[TR]
[TD]7[/TD]
[TD]23[/TD]
[TD]15[/TD]
[TD]6[/TD]
[TD]4[/TD]
[/TR]
[TR]
[TD]8[/TD]
[TD]27[/TD]
[TD]17[/TD]
[TD]7[/TD]
[TD]4[/TD]
[/TR]
[TR]
[TD]9[/TD]
[TD]29[/TD]
[TD]20[/TD]
[TD]7[/TD]
[TD]5[/TD]
[/TR]
[TR]
[TD]10[/TD]
[TD]35[/TD]
[TD]22[/TD]
[TD]9[/TD]
[TD]6[/TD]
[/TR]
[TR]
[TD]11[/TD]
[TD]31[/TD]
[TD]21[/TD]
[TD]8[/TD]
[TD]5[/TD]
[/TR]
[TR]
[TD]12[/TD]
[TD]30[/TD]
[TD]20[/TD]
[TD]8[/TD]
[TD]5[/TD]
[/TR]
[TR]
[TD]13[/TD]
[TD]32[/TD]
[TD]21[/TD]
[TD]8[/TD]
[TD]5[/TD]
[/TR]
[TR]
[TD]14[/TD]
[TD]33[/TD]
[TD]22[/TD]
[TD]8[/TD]
[TD]5[/TD]
[/TR]
[TR]
[TD]15[/TD]
[TD]35[/TD]
[TD]23[/TD]
[TD]9[/TD]
[TD]6[/TD]
[/TR]
[TR]
[TD]16[/TD]
[TD]35[/TD]
[TD]23[/TD]
[TD]9[/TD]
[TD]6[/TD]
[/TR]
[TR]
[TD]17[/TD]
[TD]34[/TD]
[TD]22[/TD]
[TD]8[/TD]
[TD]6[/TD]
[/TR]
[TR]
[TD]18[/TD]
[TD]36[/TD]
[TD]24[/TD]
[TD]9[/TD]
[TD]6[/TD]
[/TR]
[TR]
[TD]19[/TD]
[TD]36[/TD]
[TD]24[/TD]
[TD]9[/TD]
[TD]6[/TD]
[/TR]
[TR]
[TD][/TD]
[TD](479)
[/TD]
[TD](317)
[/TD]
[TD][/TD]
[TD][/TD]
[/TR]
[/TABLE]
(For those interested, assumptions are a party size of 4, an average of 4 monsters in an encounter and an average of 5 encounters per adventure. This works out at 96 adventures to reach 20th level with Medium difficulty encounters and 63 adventures at Hard difficulty. )
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