Merch Showcase; Support Us. Isle of Siptah is a big expansion to Conan Exiles, a sandbox action game with survival elements. . Isle of Siptah is a massive expansion to the open world survival game Conan Exiles, featuring a vast new island to explore, huge and vile new creatures to slay, new. Below, you'll find walkthroughs for all of the sigil dungeons found in the newest expansion, Isle of Siptah, of Conan Exiles.