Yeah i figured you could get by, I just worry that you will feel you aren't experiencing the game fully unless you pay. Think its a very fine line between free to play and its a demo and you must pay to get the full experience. Dota is free, but I've spent money, because i don't feel im being forced too. I stopped playing age of empires because it was "free to play", but soon realised i was just playing a demo. The fact that in the case of age of empires i felt they were misleading me, broke my trust. Felt it was going to be like getting into scientology and would always need to buy another course, once i got it, i would require the next one.