Warframe: Secret Rooms, Hidden Treasures (Part I)

Secret rooms hidden throughout Solar system (and Orokin Void) in Warframe. Most of them are accessible with basic parkour and some are just cleverly placed. The list is not full (as of yet), but close to it. I also didn’t include rooms that are too obvious - only ones which you really have to search for. Hopefully it will be helpful. Enjoy! :)