[@Duoya]

The laws are pretty simple. I don't have time to go through all of them, but the basics are:

- Don't kill another goblin from the tribe unless it is part of an agreed-upon duel or arena match.
- Don't assault, rape, kidnap, or abuse another goblin from the tribe.
- Don't steal from the tribe or anyone in it.
- Don't put out the sacred flame.
- Don't set buildings on fire. 
- Don't disrespect the gods.

Merchants would rarely come to the goblin village itself (maybe a few times a year), but the goblins can certainly go to trade with humans in human settlements where they are welcome. Human towns which don't welcome them could see them be imprisoned or killed.
I haven't gotten around to trade with other races, but yes, elves would trade with them too at times.

[@RisqueBoots]

I haven't thought up the names of the gods, but they would  a sky father/king of the gods, a god of war, a goddess of fertility/earth mother, a god of the hunt, gods of the sun and moon, and maybe a few others which you can come up with if you like.

Offerings are given on specific holy days and in times of need, usually by throwing the offering into the sacred flame. The offerings can be anything ranging from animal bones to pieces of wood from a specific grove, or even captured enemy weapons. The bodies of dead war heroes are also put into the sacred fire. 

As for dangers, it is usually a mix of rival goblins, humans, and wild animals. Monsters are a danger, but not at the start of the RP. Note that any monster of serious power would likely overwhelm the village in no time.

As for social problems, that depends on what one considers a problem. I will say that a lack of male role models is an issue for the young male goblins, and there's probably no shortage of STDs. But we have to handle that one carefully if we mention it at all. Jig probably can't cure those yet, but the previous shaman probably had to cure those every day.