Easily one of the best free to play games on Steam. This is a genre that has been over-done, but Unturned manages to be unique in it's own way. Kill zombies, gather resources, hunt animals, craft things and scavenge for items. That's all you do.
You only have 3 types of enemies in Unturned, there's the normal, the military and the Mega zombies, the latter being quite rare and way more powerful which will make you want to run if you encounter one, especially if you're playing on Hard, but Unturned is more about the quantity of enemies... if you get swarmed, you're gonna have a bad time!
The beauty in Unturned stands in how simple it is, yet manages to be fun and quite graphically stunning. The developer team is just one single developer, and he's about 17 years old, that is something that should always be remembered, because not only does he update the game on a regular basis (about twice a week now), he has improved this game from an almost unplayable mess for older computers which was v2.0, to a polished and really smooth game v3.0 is.
I still haven't bought the Gold Upgrade, but I'm planning on doing it, just because I want to "donate" to Nelson Saxton, this is how Free to Play should be. There's no "BUY HP FOR 5$", the game is COMPLETELY free, and all you get from the golden upgrade is cosmetic stuff, like new facial expressions, skin coloring and access to the Gold servers, which are restricted to "Premium" members (great for when you want to avoid F2P newbies). Again, there is more content but it's not shoved in your face 24/7, and it doesn't really make you a superior, more well-equipped player for owning it.
There's a set of skills where you use the experience you gather from killing zombies, hunting animals and harvesting resources, these skills are all very helpful to your survival, and will take their time to be fully upgraded. For now there's the Offense, Defense, and Support skills, maybe we'll see more in the future :)
There are numerous items in this game and for the looks of it, new items are still being added in each update. Weapons go from Hockey Sticks and Golf clubs, to Sniper Rifles, Machine Guns and more. You can find some vehicles too with a Fuel system, which means you can't go everywhere with your car without scavenging for fuel first. There's also tons of food around, but good luck on finding it in good condition, because Unturned also uses an item quality system. You can eat a carrot, but if it's moldy, your illness percentage will increase and you'll end up scavenging for pills in order to cure it.
Do you remember how satisfying it felt in Resident Evil 4, when you had your inventory all organized and in place? Unturned now has the same type of inventory in v3.0, which is way more realistic than the inventory in v2.0. An item takes X number of squares depending on it's size. Oh, and you can choose 2 of these items for quick switching with the 1 and 2 keys, you'll probably put your weapon/tool here, since a zombie always appears out of the blue!
There's not much more to say about Unturned, it's a great game where you and your friends can spend lots of hours just creating a house and equipping it, or just scavenging and exploring Prince Edward Island to find all the secrets that lies within it. Unturned is a must play to anyone who has a Steam account, even if it is for just 1 hour, it will be enough to see the effort of a young developer which I undoubtedly respect. I'm not saying it's the best game ever, I even admit it can be a bit boring after some time (for me), but for the price of 0$, it's an awesome game, and I'm pretty sure I'll play it in the future to check out the updates.