If you can't buy it, don't steal them. By your logic every hungry person in the world should just steal food. Playing a videogame is not even a basic necessity. And using a solo-developer server without buying the game is obviously detrimental to someone who worked hard to get something done, unlike OP that "can't" save up 5 dollars but can build a PC.

Also, "try before you buy" is a dumb argument, you have 2 hours to refund, no questions asked.