as someone who builds mobile games, the execution here is great. but what makes dark patterns actually effective isn't really the visual tricks, it's the context they exploit: time pressure, social pressure, and cognitive load.
you're standing at a checkout with someone watching, a line forming behind you, and the default tip is pre-selected at 25%. the "trick" isn't the UI, it's that calculating a custom amount requires more effort than just tapping accept.
same principle applies in mobile game monetization. the IAP prompt doesn't convert because the button is cleverly placed, it converts because you just failed a level, you're emotionally invested, and the "fix" is one tap away. the real pattern is always: create urgency, minimize friction for the desired action, maximize friction for the alternative.
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