Looks promising, and is a good way to spend some quality father/son time. How much luck is involved as I see that there are dice. Are you going to have a way for the players to boost or negate the dice or is it more deterministic?
A key design goal is to use the customizable LEGO dice. Right now (subject to radical change), players will have one or more dice that represent their stats (skill, experience, etc) and one or more dice that represent their equipment (weapons, armor).
The dice will be customizable by the level of each stats and by how they are distributed on the dice.
Dice rolls will be boosted or negated by in-game decision.