Arve Rezzle: Kikaijikake no Yousei-tachi

"Arve Rezzle: Mechanized Fairies" / "Arve Rezzle: Kikaijikake no Yousei-tachi" and "Patema Inverted: Beginning of the Day" / "Sakasama no Patema: Beginning of the Day" both involve a strange girl suddenly arriving in a normal guy's life and then immediately bringing on armed pursuers who wish to hunt them down by any means possible. 

"Arve Rezzle: Mechanized Fairies" / "Arve Rezzle: Kikaijikake no Yousei-tachi" and "Mou Hitotsu no Mirai wo." are short standalone science fiction works that involve an experiment or procedure having unintended consequences and thus resulting in an unfavourable outcome for the protagonists. These two anime both happen to feature a machine with a tank that the body rests in during its usage as well as a twist that leads up to a cliff-hanger ending. 

"Arve Rezzle: Mechanized Fairies" / "Arve Rezzle: Kikaijikake no Yousei-tachi" and "Patema Inverted" / "Sakasama no Patema" both involve a strange girl suddenly arriving in a normal guy's life and then immediately bringing on armed pursuers who wish to hunt them down by any means possible. 

Similar story : A new virtual world created inside network, which allows people to perform normal activities like in the real world. But there a huge incident that causes a lot of people lost their lives Different : main story is same but what MC doing is different + Baldr Force : MC join special force to handle this incident + Arve Rezzle : MC try to survive from a hitman 

In these two films, there is hardly anything in common in terms of plot. I just recommend because they both have a very similar portrayal of the characters. 

Both of these have some level of adventure. Though Arve Rezzle is a shorter series and Fractale is a longer one, they both have some huge computer network that people use or rely on.