I can't believe it, but Project Apocalypse is now out for Early Access! You can try the survival mode with basic gameplay mechanics and leave your feedback or ideas for further improvements in the steam discussions. Good luck and have fun (well, try to :D))!
Okay, a bit more serious. Currently, you can play the "alpha 0.5" version of the game. You can build your camp, explore the map around it, gather different resources, fight the infected, and even set up the basic production in your camp. It's all pretty basic and my current objective is to expand and deepen the gameplay. All the basic systems are there, now it's the time to work on the content, AI Behaviours, Crafting, Trading, and all the other stuff.
Your feedback and ideas are greatly appreciated! You can check the public Trello with plans and ideas - https://trello.com/projectapocalypsedev - and you really can affect the priority of development. I want this game to be fun for you :)
So, thank you for playing the game and stay tuned for updates and patches!