Nice game, the concept was eye-catchingly strange and the gameplay was the perfect mix of simple and complex. I've only got one minor critique:
First, although I get that luck of the draw is part of roguelikes' charm, and that trying too hard to remove frustration can make the game boring, I felt like getting through the first round seemed a bit too random. You could immediately find a powerful item and breeze through, or draw nothing good in the shop and barely get by. Maybe allow the player one free reroll at the start of round one, before they've bought anything?
Either way, looking forward to the full game. Hope there's an ending where you actually escape.