# Modding guide
Certain features of the game can be modified without rebuilding the game from source code; you should be able to just modify the pertinent files and run the game to see your changes. This attempts to document these features.
An in-depth review of all json files and their appropriate fields is available in [JSON_INFO.md](JSON_INFO.md).
## Adding a profession.
Let's say we want to add a "survivalist" profession.
We'll say this profession starts with archery, survival, traps, beef jerky and a few survival items. We'll set the starting cost at 3 points since it modifies skills and items. We could do that with the following entries:
````json
{
"ident" : "survivalist",
"name": "Wilderness Survivalist",
"description": "You live off the wild and wander the world; you've never
had a place to live or items other than what you can
scavenge off the land. People called you crazy; now,
after the disaster, you're the sane one.",
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