alternative progression systems

alternative systems to progress and raise skills/stats

for example learning by doing

• using a skill has a chance to inrease the skill and related stats

• low stats/skills grow faster than higher ones

• based on difficulty of the skill check

• optionally you can choose if this is main growth progression or on top of the leveling system

it would also be great if we could create our own progression systems

with own stats/skills, stuff gained on level up …