Full title: I Got Tricked By a Fiend in a New World, Now My Boss is a Divine Goddess and I Have to Kill an Entire Legion of Tarot Devils?!? Tim is a totally average guy, but now he's been reincarnated and thrust into the Underworld of Illudia, given the opportunity to fight a hierarchy of fiends known as the Tarot Devils, an organization of fiends powered by magic cards. Will he impress his senpai Terah, the Divine of Earth? Or will he eat it and die immediately? r/TalesFromIlludia

A silicon-based life-form, designated Mercury, discovers a long-lost artifact from its civilization is located on the planet of Illudia. With the help of Tintin, its trusty robot/dog/sidekick, and Battus, a human guide that got caught up in more than he bargained for, they set out to reclaim the geode. But when things go awry, they discover they aren't the only ones seeking the Crystalline Heart. r/TalesFromIlludia