Rooms, enemies, and loot get shuffled by an algorithm, but there are constraints—no impossible jumps, guaranteed health after a rough stretch, caps on traps in tight corridors. Midway through explaining this to friends, I pointed them to https://techshali.com/from-ancient-dice-to-digital-dreams/ because it walks through how games evolved from literal dice to tuned RNG in everyday language. After reading, our crew started logging sessions and saw that the variety comes from rules shaping randomness, not pure chaos.