MyD20 Lite Online Appendix: Uniform Advancement XP Tables

Good Morning, All:

I realize now that in my rush to get the MyD20 Lite Player's Guide published, I forgot to include an appendix that included a uniform advancement XP table consistent with the assumptions underlying the 3E XP table. This post is in response to that request from a contributor on the initial discussion thread.

The base assumption for this XP table is simple. 3E and the D20 System assumes that each level requires the same number of encounters to advance. Basically, the D20 System assumes at its core that it takes 13 and one-third encounters per level to advance, whether you are going from 1st to 2nd or from 19th to 20th level. This is in response to market research that WOTC did back in 1998 during the development phase of 3rd Edition. (As an aside, MyD20 Lite does not follow this paradigm; instead, it starts with a base number of encounters and increases the number of encounters required at each level.)

Here's the process I used to create an XP table based on the basic 3E assumption of a consistent number of encounters per level. The step-by-step results of this work is captured in Table: XP Calculations, below.

First, I opened an Excel spreadsheet and created a column for character level, numbering each row from 1 to 20, since MyD20 Lite outlines the first 20 levels in terms of XP. Next to each level, I listed the base XP value for an encounter at that level.

Second, I created a new column where I determined the number of XP that each person gets for a single encounter. Since I seat a table of five, I divided that value by five. If you follow the WOTC standard, you'd divide by four here, but since this is for my table, I went with five. (In the long run, it doesn't matter what you use, but if you decide to change the logic I'm following should you wish to pursue a similar project, it may make a difference later on.)

Next, I calculated the number of encounters that the average first level character required to advance to second level. This became the number of encounters I would require at each level of advancement for this alternate XP table.

Then, I determined the amount of XP required to advance at each level by multiplying the Encounter XP Per Person by the Number of Encounters Per Level. This gave me the number of XP required to advance at that level.

Finally, to build the table, I created a column that gave me the cumulative XP totals at each level (basically looking at the previous level's total and adding the XP required to advance in the current level), which gave me the basic XP table using a uniform level progression, 3E-style, for a single-classed character in MyD20 Lite.

Table: XP Calculations

Level	Base XP Value	Encounter XP Per Person	Nbr. of Encounters	XP to Advance	Cumulative XP Totals
1	300	60	16.66666667	1000	1000
2	450	90	16.66666667	1500	2500
3	600	120	16.66666667	2000	4500
4	900	180	16.66666667	3000	7500
5	1200	240	16.66666667	4000	11500
6	1800	360	16.66666667	6000	17500
7	2400	480	16.66666667	8000	25500
8	3600	720	16.66666667	12000	37500
9	4800	960	16.66666667	16000	53500
10	7200	1440	16.66666667	24000	77500
11	9600	1920	16.66666667	32000	109500
12	14400	2880	16.66666667	48000	157500
13	19200	3840	16.66666667	64000	221500
14	28800	5760	16.66666667	96000	317500
15	38400	7680	16.66666667	128000	445500
16	57600	11520	16.66666667	192000	637500
17	76800	15360	16.66666667	256000	893500
18	115200	23040	16.66666667	384000	1277500
19	153600	30720	16.66666667	512000	1789500
20	230400	46080	16.66666667	768000	2557500

Since MyD20 Lite doubles the XP for multiclass characters with two classes, and triples it for multiclass characters with three classes, I simply had to multiply the XP totals at each level by two and by three to determine the charts for those multiclass conditions. Table: Final XP Chart, Uniform Advancement, below, provides the final version of the XP Table for uniform advancement. If this approach is more your preference than the standard tables provides in MyD20 Lite, please feel free to substitute this in your games.

Table: Final XP Chart, Uniform Advancement

Level	One Class	Two Classes	Three Classes
1	1,000	2,000	3,000
2	2,500	5,000	7,500
3	4,500	9,000	13,500
4	7,500	15,000	22,500
5	11,500	23,000	34,500
6	17,500	35,000	52,500
7	25,500	51,000	76,500
8	37,500	75,000	112,500
9	53,500	107,000	160,500
10	77,500	155,000	232,500
11	109,500	219,000	328,500
12	157,500	315,000	472,500
13	221,500	443,000	664,500
14	317,500	635,000	952,500
15	445,500	891,000	1,336,500
16	637,500	1,275,000	1,912,500
17	893,500	1,787,000	2,680,500
18	1,277,500	2,555,000	3,832,500
19	1,789,500	3,579,000	5,368,500
20	2,557,500	5,115,000	7,672,500

Hope This Helps,
Flynn