Just joined. Looks interesting. Any brief guide so that I can have a clue as to what I'm doing? I spawned in a Mountainhome town.
King of Mountainhome here
As Zangi said, adventure in the sewers for the first 3-5 levels or so, then start looking for a level 1 dungeon to try your luck in. Don't bother with town quests until you're party level 5 or so. Make sure to get properly equipped, putting your spellcasters in large armour dualwielding shields is a good way to protect them as they are very squishy until level 10 or so. Mages and Archers are very powerful once you get them levelled up so don't give in the temptation of running a sole warrior/priest party.
For advice on levelling up your characters:
Everyone uses agility to determine defense, so everyone can benefit from high agility.
Constitution determines HP/level (or so I've been told, never really noticed much of a difference myself) and also adds to your movement factor. You'll want most your guys to have decent constitution or magic items that give bonuses to movement factor as a movement factor of 5 or 6 (or even higher) saves you a lot of turns travelling overland.
Strength is for melee to hit, archers use agility for both to-hit and defense which makes them easily overpowered
Priests use divinity for spellcasting and spellpoints, mages use intelligence. Supposedly there's also a crit-factor determined by intelligence but I haven't really looked into it.
One important thing is that the new update just brought a skill system!
This means every time you level up you also gain a skill point. Assign those skills poorly and you might well cripple yourself. My initial impression is that a character should focus on no more than 2-4 skills (level cap is 25 so you'll have 24 skill points total) and that everyone who uses a physical attack probably needs to max out the War Cry skill. You'll probably also need at least one party member with a high Awareness and one with high Tactics. Of course since the skill system is brand new is liable to be tweaked a whole lot.
Also, a link to a thread with some newbie Q&A on the forums:
http://forum.kingdoms-game.com/index.php?topic=167.0Welcome to Mountainhome!