A free game produced by NASA to be downloaded and played from Steam. The objective of the game is to co-operate with your teamates and preform various tasks, such as repairing your base after a meteor storm.
However, this is pointless, due to the text-to-speech option, which will let everything you and others say be translated into text to speech. Thus, in mostly all of the lobbies, you will see people saying 'JOHN MADDEN' or 'AEIOU', and will not get the joke untill you turn text-to-speech on. When joining a server, there's an unspoken rule at least ONE person will be spamming 'AEIOU' or 'EBAY' in the monotone of stephen hawkings/microsoft sam.
Popular phrases on moonbase alpha are:
'UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU' 'JOHN MADDEN! JOHN MADDEN!' 'AEIOU? AEIOU!' 'SNAKE? SNAKE! SNAAAAAAAAAAAAaaake!' '1234567890' '?!?!?!?!?!?!' 'EBRBRBRBRBR', et cetra, et cetra.