I've only just read Sin's thoughts on Akuma Kira's Lunacid and lo and behold, the PS1-styled, first-person dungeon crawler has now released out of Steam Early Access, to considerable rejoicing. Lunacid is a homage to classic FromSoftware games - no, not that juvenile upstart Dark Souls, but King's Field and Shadow's Tower, which date back to the late 1990s.
I played one of the King's Field games as a sprog and found it to be an extended cave system full of lava, demons and torment. Lunacid sort of applies the perspective and medieval fantasy combat of that series to a story reminiscent of Demon's Souls - the From-alike that spurred the Japanese studio to international fame - with a world that has been flooded with toxic mist by a "sleeping old one below". Your job, as some unfortunate outcast chucked into a pit, is to journey downward and confront this mysterious creature, using any and all combinations of rapiers, clubs and fireballs. Off you go then.