This really is an excellent game and has excellent potential, but there is a glaring issue with the skill of party members. Even with my entire party tasked with defending the house, I am the only person shooting and this makes the game unfairly difficult in the endgame. I would love to see a sequel with extra content and refined mechanics but the aforementioned problem is glaring.
I would definitely suggest the following, on top of what I said above:
- The ability to move your main base and maintain overall mobility of your group, therefore logically reducing your chances of being swarmed by enemies and making it easier to scavenge, but also thoroughly reducing your ability to stockpile supplies as a consequence.
- The ability for your character to go scavenging (and possibly even participate in other activities), giving the gameplay greater depth than simply shooting as many zombies as possible.
- Greater customization of your party members to ensure maximum efficiency.
- Greater micromanagement (and consequentially greater difficulty) through the introduction of features like morale, ammunition, and food.
- Variability in party members, giving them more depth than simply portraits and skills; as a leader, you have to manage them as people and respond to decisions other than who does what and killing zombies.
As I said, this game has extraordinary potential and I hope that you only improve.