Around 2 years ago, I stumbled on a random isekai manga.It was about a bunch of "Villains" from different worlds summoned by a goddess to wreck havoc on her world or something. The main character is like a Hero-turned-villain of his world where he succeeded on eradicating everything before dying at the hands of another Hero. As much as I can remember, they were all summoned into this Japanese styled room where the goddess was waiting.
One of the few things that caught my attention is that Two of the "villainesses" is an A.I. who failed to destroy her world and a Predator/Cyborg Alien overlord who failed to conquer her universe.
I tried searching everywhere and even tried to dig leeching manga sites but to no avail. I did read there's a novel of it but with the vast number of Isekais and Wuxias having a "hero-turned-villain" protagonist, its like searching a different leaf in a forest.
It's been bugging me for years and I'm nearly on my wits end. Any help would be appreciated.