I'm running a game that not only has the players jumping the rails but are cutting the through the mountain, and I'm having trouble stopping the players without killing them... the scene is they just pissed off a Lich that values only knowledge and artefacts' (which they stole after destroying his weaken body).They are now diving into dwarf city, which was abandoned because The God, that ruled The Demon Hell that even angels didn't know about, attacked the them. The dwarves cut off their city, sacrificing themselves, from the surface to stop it. And this Demon God Jailer (as in a being that jails demon gods) is now residing within one of the players (Clearly evident by his eyes changing to full silver front of another player).So as it stands a Lich which by its self could kill them(CR 21), an ancient red shadow dragon(CR 21(Not mentioned above)), and now a God greater then Demon Gods(CR ??) vs. eight level 6.5 players (half level 7 others level 6). How do I turn them around without killing them or all they have build.I just thought I've forgotten to talk about the focus of this campaign, the game Banished(see steam), which was a village building game. Limited resources, NPC focused and environmental hazards. Add D&D 5th where an ancient red shadow dragon(CR 21) can be killed by 100 level 2 fighters given enough warning.