The second part will offer many new elements, such as the transfer of genetic information from generation to generation. This will supposedly strengthen the relationship between the player and his characters, and the player will be able to influence the personality of his Sim and his further development to a much greater extent through an element called Great Life Moments. Sims will react to a much greater extent to the environment in which they will be and to other Sims around them. They will clearly express their mood and feelings through facial expressions and body movements. Relationships between Sims will also be much more complex, whether it is marriage, platonic or romantic love. A new engine, because the original one was really insufficient. So hurray for reality.