is there a sequential order to play?

[Raiden]

so i downloaded the becoming human beyond 2 souls and heavy rain, which one should i play after becoming human?

[TheScruffinator24601]

They're all very different games and their stories don't connect to one another, but I'd suggest doing heavy rain first, then beyond two souls, then DBH (DBH is by far the best one.)

[AugustsEve]

Don't play Heavy Rain after DBH, the controls will kill you. Let DBH be a welcome relief instead. Beyond Two Souls didn't hold my attention, try it since you've got it, but I skipped it.

Otherwise, as the guy above me said, order is irrelevant to the stories themselves.