No air outside and also the dome worked like a mesh that was able to allow a tiny bit of water or gas through it.
Note: Azote is the old name for what is now called Nitrogen
its a good amount of oxygen and carbon dioxide thx
it's done tell me if you like this mixture if you want more or less CO2 :)
bingobomb: Yes you right, in reality they are 21 % of oxyen and 71% of Azote, and rare gases, in the game we can only use pure oxygen, reason for what he burn so fast, but i'm gonna find a solution for that, count on me, I'll do it tomorrow, thanks for your comment
add some other gasses to make it even more realistic. Oxygen is only 20% of air.
HapyMetal Yes I understand, but in the series the dome is indestructible so I wanted to stay true to the show