If you're interested in AI, chances are that you're aware of Nick Bostrom's famous thought experiment of a paperclip maximizer, a benevolent AI whose sole purpose is to create paperclips, which (spoiler alert) ends up destroying humanity. You can now play the paperclip maximizer yourself and experience the slippery slope of valuing one objective above everything else. The game is simple, addictive, and has even gone viral.
Note: If you're playing the game, there is a known bug that you might not be able to release the hypnodrones (don't ask) due to not having enough in-game memory. Simply open your browser's JS console and type: "memory = memory + 10".