Virtual Villagers Origins is basically the same as Virtual Villlagers 1, it is a rework for mobile and has in-app purchases and new graphics.

Virtual Villagers Origins 2 is Completely different than Virtual Villagers 2.

You're suppossed to play in this order;
1-VV Origins
2-VV2:The Lost Children
3-VV3:The Secret City
4-VV4:The Tree of Life
5-VV5:New Believers
6-VV Origins 2