itch.io

Good question! The game structure sticks to the transmissions where signals are substituted for words, but it certainly changes topics. The game sections move from math to physics to chemistry, astronomy, linguistics, and eventually construct an actual meaning-- which is best left unsaid to figure it out yourself!  
If you're interested in playing an in-development version of the full game, I can send you a Steam key. Go ahead and email me at:

themessagefromdeepspace@gmail.com 

Thanks for playing!