What is the most insane, tedious, difficult, and/or noteworthy gaming achievement you have completed or given up on?
The concept of achievements in games has existed for quite a while now. According to Wikipedia's article on video game achievements, they were first programmed into some games in the 90s, and...
The concept of achievements in games has existed for quite a while now. According to Wikipedia's article on video game achievements, they were first programmed into some games in the 90s, and perhaps first made it big with the Xbox 360 in 2005. Steam achievements shortly followed in 2007.
Some of them are very easy - "Complete the tutorial" is a comment achievement. Some of them are silly - "Pet all the dogs in the game" has become a bit of a meme. But some require an incredible amount of patience, luck, and/or skill.
What are some achievements that you or others you know have put time into that felt significant? Or perhaps even ones that stand out for being a clever addition by the game developers.