Book excerpt: Cha'alt is an eldritch, gonzo, science-fantasy, post-apocalyptic campaign setting + megadungeon for old school and 5e D&D. It's 216 pages of places, people, races, monsters, spells, magic items, and weirdness for your roleplaying game of choice (including my own Crimson Dragon Slayer D20, which is included in the appendix). Suitable for levels 0-10. Amazing, full-color layout and artwork the likes of which you have never seen, nor will you ever see again!