Up and Down is a somewhat unusual 2-button mobile app-like action puzzle game where you move on a 2D grid, but you can only move up or down. Each square on the grid has either a blocker/hazard/gimmick tile, or a tile that pushes you left or right over time. You must collect the gems on the grid. The difficulty in the game is the various grid layouts.
From a technical perspective, the game doesn't meet basic minimum requirements that most PC gamers expect as standard.
There's no options to change the resolution for the game or customise the graphics settings. There's no way for gamers to ensure this is running at the native resolution of their displays... there's no guarantee this game will look right on any PC as a result of this hamfisted design decision. There's no way for gamers to try improve the low quality graphics.
The game features simple, minimalistic 2D graphics, of the type you normally expect to see in low effort mobile apps. 3D graphics programming does require a degree of skill and competence and unfortunately not all developers have the budget or talent to deliver this, despite 3D graphics cards hitting the mainstream in the 1990's. Considering this is being evaluated as a PC game, having the graphics phoned in like this isn't going to result in a high quality, visually impressive game that PC gamers are used to seeing.
The game only displays in 4:3 pillarboxed aspect ratio. It's possible they developed this using an old CRT they found in a dumpster, or this game has been specifically designed for people gaming on PC's from 1995... either way, this isn't really acceptable in the modern era of PC gaming.
The controls can't be customised, which will be an annoyance for many, but it can also render the game unplayable for differently-abled gamers.
Some of the defects in the game can be attributed to the choice of using the GameMaker Studio construction kit/toolset. This is a very poor quality toolset favoured by amateur developers as it's cheap and requires little in the way of development skill, but unfortunately has very limited capabilities. Just as you can't make a silk purse out of a sows ear, you can't make a great video game if you use a terrible engine. GameMaker Studio is most commonly used to make retro pixel shovelware and cash grabs.
A strong argument can be made that construction kits like GameMaker Studio should never be used to make games for profit, as the "developer", Konstantin Pilipaka has done here. These construction kits are intended to teach people some of the basic principles of game development, and to make small demos to pass around with friends. They're not intended to replace to actual work of real, professional game developers. So it's inappropriate when amateurs try to use these for profit, without any actual, real game development effort taking place. This doesn't result in products that have any real meaningful value for gamers.
This looks and feels like a mobile app, but I wasn't able to find it on the app stores. Maybe it was removed, maybe it was 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 "Up and Down" 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 and play games that might as well be mobile apps.
These technical defects push this game below acceptable standards for any modern PC game.
Up and Down didn't appeal much to the people who own a copy of the game, either. It has achievements, and they show us a very clear picture that the game didn't really capture any interest from gamers. The most commonly and easily attained achievement is for collecting 150 diamonds, this takes probably less than 10 minutes in the game, but only around 1/3rd of players bothered to get that far before uninstalling the game. Hardly a success story, gamers just weren't all that interested in the game.
The poor quality of this game is also 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 50,000 games for gamers to choose from (over 9,000 completely free titles), the overwhelming lack of interest in this low quality game is to be expected.
Up and Down has the ridiculous 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. Because this is the kind of game you can just play for free on mobile phones, it's impossible to recommend anyone should pay money for the same experience on Steam.
