I've Attached My CV And Cover Letter is a short game in which you... write a cover letter. The idea is quite brilliant. You're given a word processor interface and you're simply seeing the current state of the letter. Unsatisfactory parts are underlined in red and can be changed by clicking. There are a few cycling links where you get to choose the final words used, but mostly you'll end up in a pre-determined place. That doesn't matter. This is not a game where choice matters, it is a game where you explore the thought processes of someone trying to write a cover letter.
Writing a cover letter is terrible! You need to make yourself look good, which is already a deeply uncomfortable experience, and there's something tangible riding on the result. You also know that chances of success are low. In addition, it is really hard to get a good grasp of how your letter will strike the people that read it. And so you get to agonise over every word. This agonising is portrayed well by Jaime Monedero March, both in its anguish and in its humour. I had fun with this cover letter.
Recommended, especially since it will take you only ten minutes.
(I played this game as part of an IFDB Spelunking expedition where I try to play through ten random games.)