DarkHorseMC is a survival server that mixes pve and pvp in a pretty cool way. Most of the world is about exploring and building and surviving. You can make your own base and try to build up your legacy in factions.
If you like pvp there are custom arenas and a MobArena where you can test how strong you are. If you do not want to fight all the time you do not have to because pvp is more optional and focused in those spots.
There is also a player economy so you can try to get rich by trading with other players. The server grew out of the old TeamExtreme community so it has that feeling of a big shared world and a spawn area that the world grows around.
Faction building and teamwork are really encouraged. The server aims to balance survival pve with chances for pvp fights so you get adventure strategy and community all in one place.

