Best Place To Farm T1 Keys?

[Airut]

Farming T1 keys has always been pretty hard for me. There are missions where you can get pretty much guaranteed T2, T3 and T4 keys, but I don't know any for T1 keys.

[Agentcheese]

im not sure about this at all. but try mercury's survival. if that doesn't work id say try a few more defense or survival missions around low level planets. in other words mars and everything below it.

I hope this helps but I may be wrong. its been a while since I got my last T1.

[MagPrime]

I checked the wiki;  ( http://warframe.wikia.com/wiki/Void_Keys )  from what I read, you just have to grind out the lower level areas, 15-20, to get any T1 key.

[DoomStick]

Join others on T1 Survival in recruit chat to farm random T1 to T3 keys.

Do defence mission on Mercury, Earth and Venus and pray to RNG for T1 key on wave 15.

Do survival on Mercury until 20 min for mostly T1 Survival

Edit misread.

Edited September 24, 2014 by DoomStick

[evil4458]

do appollodorus XD

[Karamethien]

If you find 2 Caches in the gate crusher mission you get 1 key.