& here I was looking for a place to post a thread to sound the alarm, & it turns out it's already been sounded.
Looks like he is up to thirty four games thus far, largely a collection of unity asset flips & RPG Maker projects made by other creators. At a rather impressive rate.
He has actually already been reported to Steam, but Steam hasn't taken any action, against him as a user/developer, nor against even the games where the original creator has spoken up.
Update:
Haven't been able to track the actual user yet, they don't have an actual developer page, were smart enough not to interact or post any content on any of the community forums of their game, or on their store pages. Also there doesn't appear to be any linked social media accounts to this Garnudo Games, no real surprise there really.
They've apparently been reported multiple times, two Steam Curators have already covered that he is an asset flipper, fake developer, etcetera, links below.
https://store.steampowered.com/curator/27507830-Sentinels-of-the-Store/
https://store.steampowered.com/curator/18710490-The-Trash-Pit/
Profit doesn't seem to be his actual motive though, as he is apparently giving away Steam Keys to users by the literal thousands for his flipped & pirated resources, on a website called the gamecode.com. Links below.
https://gamecode.win/
Given the number of games released & the time table involved, i.e. thirty four games or $3,400 US in a little over thirty days; coupled with giving away Steam Keys by the thousands I believe malice/mischief is far more likely to be his goal. Specifically, someone who is bored & can afford to throw away literal thousands of dollars for no other reason than presumably the amusement value from the consternation it will cause others.
I suspect that if you find your game posted up on Steam, you'll also find it on the other usual sites. However, I haven't been able to confirm that, because he doesn't appear to be using the title Garnudo Games on sites like Itch.io or Gamejolt.
However, I also haven't run through Garnudo Games' Steam "title catalog" on the other usual sites to see what comes up if anything.