TEXT: THE DUNGEON INN`
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  Skill Point Table
  Proficiency
  Standard
  Cost
  Expert 
  Cost
  One skill in your class list*
  1
  3
  One Language
  1
  -
  One Tool
  1
  -
  One Musical instrument or Gaming set
  1
  2
  One Vehicle
  1
  2
  One simple weapon
  1
  -
  One martial weapon
  2
  -
  Firearms
  2
  -
  One skill not in your class list*
  2
  3
  Light Armour
  2
  -
  Medium Armour
  3
  -
  Shields
  3
  -
  Heavy Armour
  4
  -
  *Skills on your class list are only the skills listed under the Class 
  Features heading of your class, and do not include any skills granted to 
  you by features of your class or subclass.
  Once you have spent skill points on a proficiency, you 
  cannot change your choice, even if you later gain more 
  skill points. If your character’s Intelligence modifier 
  permanently increases due to a feature of your class, 
  a feat, a magic item, or a boon, you gain 1 additional 
  skill point for every increase of 1 to your modifier. 
  The effects of potions, spells or magic items that grant 
  temporary or conditional increases to your ability scores 
  (for example a headband of intellect) do not increase 
  your number of available skill points.
  You can purchase an option from the skill point table 
  multiple times, but you can only purchase a maximum 
  of 3 skills for their standard cost and 1 skill for its expert 
  cost, regardless of if those skills are on your class list or 
  not.
  As always, the DM decides what is and isn’t allowed 
  in their campaign. Some of the options provided by 
  these rules, such as being able to add double your 
  proficiency bonus to skills, have the potential to shift 
  game balance. They are provided here to allow for 
  greater variety of character concepts and specialisation, 
  but it is ultimately the DM’s decision whether or not 
  these options are used.
  Why Use IntellIgence?
  The Intelligence score is intended to represent your 
  character’s mental acuity and education. While this doesn’t 
  always represent how a character came to learn the skills 
  provided by their background, the choice to tie this system 
  to the Intelligence score was made to place a greater focus 
  on the score within the game. The Intelligence score in 5th 
  Edition D&D has practically no mechanical bearing outside 
  of your class features, should they require it. As a result, many 
  players choose to “dump” their Intelligence score and face 
  no repercussions for it. Additionally, Intelligence has been 
  historically tied to skill-based classes like the Wizard, Artificer 
  and Rogue, as it represents a character’s aptitude for learning.
  cost, you must first buy the proficiency for its standard 
  cost, or already be proficient with it through another 
  source.
  To purchase proficiency in medium armour or shields, 
  you must first be proficient in light armour, either from 
  another source or by purchasing it for its standard cost.
  To purchase proficiency in heavy armour, you must 
  already be proficient in medium armour, either from 
  another source or by purchasing it for its standard cost.
  Variant Background 
  rules for 5e
  This supplement provides optional rules for assigning 
  character background proficiencies in Dungeons and 
  Dragons 5th Edition. The reasoning behind creating 
  these variant rules is twofold; to provide more players 
  with more options for customisation during character 
  creation, and to help balance out the six ability scores 
  by giving the Intelligence score a new mechanic to 
  interact with – skill points.
  This supplement takes the background system as 
  described in Chapter 4 of the Player’s Handbook and 
  expands upon it. It allows players to pick and choose 
  the skills, tools, or other proficiencies granted to their 
  characters through their background while keeping the 
  rest of the benefits intact. These new rules are designed 
  to replace the rules used in the Player’s Handbook.
  To use these rules, start by picking a background for 
  your character as normal. However, only record the 
  name, starting equipment and unique feature of your 
  chosen background on your character sheet (if you wish 
  to forgo your starting equipment in favour of gold, you 
  can do so using the rules provided in Chapter 5 of the 
  Player’s Handbook).
  skill Points
  Your aptitude for learning is measured by skill points, 
  which are based off your character’s Intelligence score. 
  You can use these points to ‘buy’ skill, tool and other 
  proficiencies during character creation as shown on 
  the Skill Point table. These proficiencies replace any 
  proficiencies you would ordinarily gain from your 
  background.
  You have a number of skill points equal to 6 + your 
  Intelligence modifier. You can spend as many of these 
  skill points as you like during character creation. Any 
  unspent skill points are recorded on your character 
  sheet and may be spent when you gain a level in any 
  class, or at any point the DM chooses (such as after 
  completing a period of downtime).
  Some proficiencies have two costs; a standard and 
  an expert cost. Purchasing a proficiency for a standard 
  cost allows you to add your proficiency bonus to checks 
  using it. Purchasing a proficiency for its expert cost 
  allows you to add double your proficiency bonus to 
  checks using it. To purchase a proficiency for its expert
  
SOURCE: textdata/thevault/Dungeons & Dragons [multi]/5th Edition (5e)/3rd Party/Dungeon Inn/Dungeon Inn - Variant Background Rules.pdf