Eberron is a world of many races. All races that are statted out for player use are valid for play, but if you are choosing a rare race or unpopular race it will matter. Don’t expect people to be super friendly to your tiefling.
Note: Some races listed here are homebrew expansions of Monster Manual races, and are marked with an (H) You cannot create these with the character builder from WoTC. These should be balanced, but there’s a chance they will be slightly weak or ridiculously overpowered.
- Kobolds (H)