Jannik - that's me. I'm a freelance web developer since March 2016 and was a regular, employed web developer before - total experience - about five years.
I've been working for a company called InnoGames (any many more) for quite a few years (one of the major browser/mobile game developers in Germany and Europe) - and I'm always working on my own browser- and client game projects, too.
How much do I charge? It's a tough question. I usually charge about 33-35 EUR per hour (net) remote work during prime time (Monday-Friday, 9-to-5). However, I'm aware that there are lots of decent projects and start-ups out there on a budget - so I'm offering fixed prices and (much) lower rates for non-priority work I can do in the evenings and on weekends. General rule: It's negotiable - and I'm more willing to find a good rate for both of us if the project sounds interesting.
Anyway. Should you be interested - don't shy away. I'll be available to answer your requests and find a good deal.
You can reach me by sending a mail to email@example.com