Let me go through a few non official development advantages/disadvantages
Fishy Elves - Advantage can hold breath for really long time
Disadvantage: reaks of fish attracting hordes of monsters and clears out taverns
Dwarves -
Advantage: Uhhhh they can fit into small crawl spaces
Disadvantages: Smelly, Dirty, usually disoriented from drunkeness, requires booster chairs in taverns, decreased mobility due to stuby legs, did i mention they smell bad ?
Enkid something or another (the cat guys):
Advantages : Scares of rodent monsters easily
Disadvantages: Really hairy, avoided by most ppl because of the bad habit of licking themselves in public, occasionaly chokes on a hairball
Diaboli
Advantages: Well theres the whole mass orgy thing
Disadvantages: high fatigue rate due to the whole orgy thing, also they look kiind of oily
Klyros:
Advantages: They can fly
Disadvantages: Crashing into stuff when not paying attention to where they are flying, taste like chicken
Kran:
Advantages: Rock hard skin makes armor and weapons obsolete
Disadvantages: Tendency to walk into walls , inabillity to walk and chew gum at the same time, really really extrodinarilly stupid
Lemurs :
advantages: Really smart
Disadvantages : Nerdy, also when exposed to bright lights they tend to get \"sun\" burnt
Demorians :
Advantages : Can see in the dark, magic bonus, distance bonus, dexterity bonus, really smart , good hearing, can hold breath for a long time, can do mystic things with nature, archery bonus, charisma bonus
Disadvantages :
ummm well i guess you could point to the pointy ears