@TakeHomeTheCup : Right. While it doesn't have to be a full game, I've just noticed that in the past that is pretty much what wins. And if you think about it, trying to judge a long game on 1 hour is near impossible. Imagine trying to judge FFXIII on the first hour if you are playing it for the first time. It's near impossible to do so and do that well, and figure out how that compares to a full one hour game that you know how it goes. And for the record, here were the winners in 2014. Most of them are in the humble bundle. I think Goats on a Bridge might have been proof of concept stage at that point in time, but that was it: http://blog.rpgmakerweb.com/announcements/indie-game-making-contest-2014-winners/ And the 2015 winners: https://rpgmaker.net/forums/topics/19711/ I do think a few proof of concepts or smaller demos did win best engine in 2015, but for a couple of engines the number of choices were very limited. Still, this might help you to see what has won in the past.