I wanted to let you know that months after seeing your reddit post introducing this game, I've finally had the opportunity to run it for a group of kids. Some were very young (the youngest is 4) and all of them are used to competitive games like Uno so that was its own mess to sort through, but, the game works really well for being as light as it is. In the near two hours we played, we only had one Fumble and that's where the table broke down because of hurt feelings.
The only changes I felt really needed to be made was to use a chess board and figurines for visual aid, and having enemies attack only when the player rolled really low (2 below DS=1 damage, 4=2, etc). That last was more to speed things along with less rolls and to make the kids feel like they were a bit stronger since at a certain point the enemies essentially lose the ability to attack because the DS is so low they never get the chance to attack again (around DS5 and below), which is when I declare enemies would attempt to flee.
It was a fun game and I may try convincing them to play it again! Thank you for the contributions to the hobby and I can't wait to see what other titles you create both in and out of the OdWood