Eros's Ancient Machine

Publisher's blurb:

Intricately carved sandstone tiles are marked with strange, arcane glyphs. They decorate this ruined desert temple everywhere, though the most magnificent engraving waits in the centre of a platform, surrounded by empty space and connected only by two bridges—one of which is cracked.
Fractured stone pillars hold up the temple’s roof, though the ground is scattered with piles of rubble and fallen sand. Further down, on the levels beneath the platform, more bridges wait, also covered with the glyphs.