I didn't know it was discussed since I don't see a search function available. "Punishing the player" would only happen if it's implemented across the entire game instead of an option to toggle. "frustrating trial and error gameplay." is already in the game depending on the difficulty and if the player hates the difficulty. I was thinking just areas in which you would cast a shadow, where the shadow would cross the path of the AI detect field, you're detected. Just as simple as being detected under direct light, you're detectable by light that is behind you. I don't see why it would be extremely ridiculous to implement but i'm no programmer. "What's the point in terms of gameplay?" I dunno, realism, challenge...pretty obvious I would think. It wouldn't have to be for absolutely every angle everywhere, just areas where I feel like I should be easy to spot due to my profile being obvious despite the fact I might be in the shadow of something else, there's a lot of times there's bright light behind me that would make me easy to see. It's just something I find rather noticeable. You mean, observing the backlit areas and where the ai is viewing, something like a master thief would actually try to do? If this were implemented I'm pretty sure a light gem of any sort would be unnecessary and is already able to be turned off. it wouldn't be needed if one just observes the ai and knows what light source is behind them that they would likely intersect. wow, a game? you're right, simulating reality couldn't possibly provide any sort of fun.