You may have guessed that this is from the ksp mod "kerbalism ",and the droodism mod, yes, mainly about life support for droods.the first version of this mod wont cover the radiation protection or complete science research overhaul (because the laziness lol ).the thought came to my mind because in the current career mode, it is TOO easy to do a manned space flight, you don't need to prepare foods and drinks for the drood, or make sure there are enough oxygen in the tiny tin can,although there IS a crew bonus mechanic which reward tp, however it still seemed to easy to complete a contract with a drood sitting behind the craft.
also you are welcomed to leave your suggestions about this mod, maybe I will take them and make them in to this mod.
@Bayourex I'll focus on the life support(food&water oxygen) first