The Natars are a pure NPC tribe and thus cannot be played by oneself
Independent Natarian Villages
Unlike oases, independent Natarian villages are not located on the map right from the start. Instead, they will gradually spawn all over the map.
Independent Natarian villages are like regular villages in terms of production. They increase their resource fields and construct new buildings. They will also build troops once in a while. Unlike oases, those troops are built regularly in barracks or in stables and will not spawn instantly.
Players can raid, attack and chief independent Natarian villages. However, players may not send reinforcements to the villages; Travian will prevent that automatically. If a player uses their catapults to reduce the population to zero, the independent Natarian village will vanish from the map like regular villages.
The independent Natarian villages will not attack or send reinforcements to another player or other Natarian villages. At least not in Travian 4.0, but their artificial intelligence might be improved in a later Travian 4.x version. They might be able to reinforce other Natarian villages or even to attack players, but that upgrade is nothing more than an idea currently.
The Natarian tribe does not count as a player. So attacking an independent Natarian village is even possible while being under beginners protection.
Wonder of the World villages
All Wonder of the World villages are located on the map right from the start of the server.
Natarian villages containing an artefact
Unlike Wonder of the World villages, Natarian villages containing an artefact are not located on the map right from the start of the server. The villages will spawn randomly after several month.