Such a great concept! But the movement was a big problem. I like the "build-a-dungeon" theme and it looks great. I just got stuck a lot when moving, especially when interacting with the chest. And Gizmo drifts a bit, so trying to grab the money to build a last minute trap always got me killed.
I wonder if maybe a cursor-based interface wouldn't be better. Or maybe giving Gizmo some combat capability so it's worth it to stay in the action. But in the end, maybe this was enough, it just needs a tighter movement system.
Overall, a promising entry. Thanks!