Thanks so much for the detailed feedback! I really appreciate you taking the time to share your thoughts.
Art and Sound
I'm glad you like the pixel art. You're right, I've used some asset packs, but I've tried to be very careful with my choices to create a cohesive look. It's encouraging to hear that the art direction is working. I agree about the lack of music—it's something I'm hoping to address in future updates.
GUI and Information
You've hit on my two main concerns right now: the GUI and onboarding. I agree that the hero and spellbook tabs are confusing in their current state since the features aren't yet implemented. I'll be removing them in a future update until the mechanics are ready to go. I'm also working on adding proper tooltips so the stats are no longer a mystery.
Gameplay
I've been working on the gameplay loop based on feedback like yours. In the most recent patch, I completely reworked the shop and unit system. Now, players receive gold based on their number of wins, and after each victory, you can choose a unit to upgrade. This gives you much more control and makes the game feel less random.
I've also increased the number of available units to 36. While they currently only differ in stats, I'll be adding unique perks and skills in future updates to make your choices even more meaningful. I truly believe these changes will make the game feel fairer and more strategic.
Thanks again for the kind words about the new backgrounds. I put a lot of work into them, and it's great to know it paid off. I'll do my best to address all the issues you've brought up!