TOME has been setting the standard for years. There is no commercial alternative (and never has been to my knowledge) that approaches the depth and replayability. You get years of valuable playtime for nothing, not even having to register, on the creator's website. The creator deserves the right to offer something extra for those who want to support his work. The foundational game is enough for anyone. But I just bought the whole thing because it was on sale and because it's outstanding. If you want good games like these, put something into talented creators. Buy it and pat yourself on the back.
