Participated in @Digit4lOverdose 's #DOCTF #CTF over the weekend. It was a lot of fun! You can still try them out right now I think. https://digitaloverdose.ractf.cloud/
Many of the challenges were written by @AtomicMaya and they were fantastic, their's particularly were innovative, and not just finding a tool that exists, but writing your own.
I have to admit, I made it hard on myself and found at least two bugs in how the flags were constructed (one was giving me a dynamic answer!) I also broke one and found the flag with an unintended breakage of an API. I also broke a pwn challenge by rewriting a .htaccess file where the solution was uploading an HTML file with SSI instead; oops!
The #1 thing I learned though is that I need a couple of buddies to team up with on these. Especially if I want to be competitive. I'm pretty good, but I'm stubborn and waste a lot of time on things other people are better at where I should be tackling the challenges I'm best suited for.
I got all the PWN and Web challenges and most of the others, so if ya have any questions about how something was solved, just give me a ping!