Warning: Asset Flip!
Zombie Survivor: Undead City Attack is a Digital Homicide style asset flip, or what Valve calls a "Fake Game". The "developer" paid for/pirated a few Unity asset store packs, dumped them all in a blender, and submitted it to Valve as if they're real game developers.
Two notable criteria for what makes an asset flip instead of legitimate use of stock assets are whether those assets comprise the majority of the game, and whether the "developer" properly credited the people who created most of the assets in the game. This game fails both of those tests. The "developers" here didn't credit any of the artists and real, actual game developers who created the assets here, so this is plagiarism, as well as cash grab shovelware.
In this case, the asset flipper took took a bunch of Unity Asset Store assets (an example is the Zombie Dogs asset pack created by real developers, 3DRT
Link here so you can see for yourself), and combined them with a basic 1990's mobile app template for making a static/on rails shooter. It has no value or merit as a real game.
Taking this shovelware seriously as if it was a genuine attempt to make a game, it doesn't meet basic minimum requirements that most PC gamers expect as standard.
The game assets are fairly mediocre/low quality which fits with the idea they weren't developed by the game creator... they look like they're "just reasonable enough" to go on sale as part of an asset pack. The issue of asset flipping aside, ultimately the quality of these assets is low and low quality always makes for a less than optimal gaming experience.
The controls can't be customised because the game has such a dumbed down, simplified interface that it's just iPhone screen tapping stuff. The fact that the interface is this dumbed down might be seen as a problem in itself, however... this is a fairly shallow experience if you're the kind of gamer that likes to play games with deep, rich control schemes and interaction. You'll get none of that here.
This is indistinguishable from a mobile app, but they put this on Steam instead of the app stores by mistake. Was it rejected by Apple and Google (they do have more rigorous quality standards than Valve does for Steam, after all)?.
Regardless, for all intents and purposes Zombie Survivor: Undead City Attack might as well be a mobile app, it has the same limitations and dumbed down qualities. It's impossible to recommend such a game to PC gamers. We don't spend all this money building gaming rigs so we can pretend they're iPhones.
These technical defects push this game below acceptable standards for any modern PC game.
The poor quality of this game is reflected by how many people spent time with it. At the time of this review, SteamDB shows the all-time peak player number was only 2 players. This is a remarkably low number, and now, the only player activity occurs once or twice a month, presumably someone loading it up to see what it is then quickly uninstalling it. Considering there's over 120 million gamers on Steam and well over 100,000 games for gamers to choose from, the overwhelming lack of interest in this low quality game is to be expected.
This kind of asset flipping isn't harmless. It makes it harder for gamers to find genuinely made games from ethical developers. It makes it harder for genuine indie developers, who put hard work into trying to make real games, to find an audience for their products. It gives indie developers a bad name.
This game features a number of suspicious, likely fake positive reviews. The reviews all appear at almost exactly the same time, very shortly after the game launched on Steam, all have a direct Steam purchase of the game, and all have very similar wording and writing style. Immediately after this huge peak of reviews, reviews (and player counts) for the game dropped incredibly sharply. This is highly unusual given the very low quality of the game and poor player counts. The "Positive" review score on this game should be taken with a large grain of salt. This might have been done to deceive/mislead gamers into paying for a bad product.
So, should you buy this game? Is this one of the best of the 100,000+ games on Steam?
Zombie Survivor: Undead City Attack has the gamer gouging price of around $6 USD, it's not worth it given the defects and shortcomings with the product, especially considering the sheer number of completely free, much higher quality games on Steam.
For comparison, the $6 asking price for this game could get you games like "Mass Effect", "Borderlands: The Pre-Sequel" or "Euro Truck Simulator 2". Quality, professionally made games like those are frequently on sale cheaper than this.
Profile Features Limited!
Valve have marked this game as "Profile Features Limited" at the time of this review. This is usually caused by poor sales figures and low community acceptance for the game (to date). Until this status changes, this game will not give you +1 to your Game Collector badge count, appear in profile achievements or any other Steam meta-accomplishments, nor can it be displayed in some profile showcases. If these factors are important to you, it may be worth holding off before buying this game.