Warframe

[zero_kanipan]

You can get some cells from Sargas Ruk (Saturn > Tethys) or Kril (Ceres > Exta). Then you can just farm credits from Tower I-III capture keys or alert mission if you're out of keys.

where do i find the tower capture stuff? are those the things on the left side o.O?

remember those keys you sometimes get in missions? Using them would let you start a mission onto the Orokin Void and in particular you should be looking for Orokin Void Capture Mission Keys.

i meant on the interface. how do you get to those missions? where do i click? XD coz in the void missions i joined you guys, the map is blank and the mission just pops up and starts. like, what sorcery is that XD