Delo.ua was able to investigate the matter further, questioning an unnamed source regarding the PS4 Slims and the games they were running. The source described the farm using a "leveling bot" for FC 25 Coins and then "selling them." Perhaps something is lost in translation, but the message comes across as a very general description of what could have been happening, as opposed to a literal explanation for how the farm was using consoles to use FC games to earn money.
There are many ways that FC could be used to farm money, of course. The most fitting explanation would be selling FC Ultimate Team accounts. Since individual players can't be traded in Ultimate Team, there's a huge market for new accounts with valuable players already unlocked on them. Alternatively, the PS4 Slims could be farming FC 25 Ultimate Team Coin, FC 's currency. It may not be as lucrative as Bitcoin, but it can be farmed on PS4 Slims rather than $1.000 GPUs.
The intricacies of how the digital farm manages thousands of PS4 Slims, each independently running FC, are unclear. The basic idea is that PCs are used to run bots, which then control how each console farms currency or FC Ultimate Team packs. It had to have been a lot of work to manage.
It just goes to show what kind of economy Electronic Arts has created around FC and its other sports games. It has made earning FC currency and in-game content so frustrating to earn that there's a market comparable to cryptocurrency mining thriving on selling these digital products to players.
The ninth generation of consoles has brought with it some major improvements to the gaming experience, but it's also brought new challenges to publishers and developers. Many companies are now trying find the best way to release next-gen upgrades for games on older consoles, and others are addressing this problem for games right around the corner. Two of Electronic Arts' most popular sports franchises, buy Fut 25 Coins, have new games on the way, but it looks like PS4 and Xbox One players may have to spend quite a bit to enjoy a next-gen experience.