A simulation players can't read is just RNG with extra steps
Been chewing on why some simulated systems feel alive and others feel like hidden math. My theory: legibility is the part everyone skips. Teams nail the rules, sort of handle the emergent behavior, and completely forget the player's mental model. But if I can't tell WHY something happened in your sim, I'm not making decisions, I'm gambling.
Best example I know is the Plumbob in The Sims. Delete that green diamond and nothing about the simulation changes, but half th e game's appeal dies. It's not UI, it's the sim made readable.
The flip side is the fidelity trap. SimCity 4 tried simulating individual citizens, players couldn't tell the difference, so they cut it. Valve's water in HL2 is physically wrong and nobody cares because it makes the gravity gun feel good. Fidelity nobody can feel is just CPU cost.
But then there's Dwarf Fortress, which is deep AND illegible and people love it anyway. So maybe the community/wiki is doing the Plumbob's job externally?
Where's the line for you between "readable system" and "solved system"? At some point legibility kills the mystery.