It's pretty cheap and a lot of fun if you're into simulation type stuff. It's a lot like the Sims, but with zombies. It's worth grabbing a copy of it. The new build (build 42) is unstable, but their build 41 has over 31,000 mods in the Steam Workshop. You can basically cook up any scenario you want, as the game is a sandbox. Want to be a trucker in the zombie apocalypse? Make it happen, with everything from needing fuel and supplies for you and your truck to tools and materials in case you need to do repairs. Electricity, water, all of that is on a limited time so generators and fuel are needed to be eventually subbed in. Basically, if you can apply it to a real life oh fuck scenario, you can do it in Project Zomboid.