Worms Rumble

This is pretty straightforward reach level 50 in worms. With that said, there are 3 ways to do this, the fastest, the most active, and the most AFKable.

First the fastest, double experience is up from time to time. I'd suggest following @Worms on Twitter to know when those are up. There is a small caveat here, if you are looking to unlock all customization items its highly possible you won't get enough coins to buy all those if you use only double experience, if you are looking solely for this achievement, this is by far the quickest.

Second, is the most active. Simply play the game, the better you are the more experience you will get a game. With the recent added quick search, you can actually get games at a decent pace at most times. I'd suggest team deathmatch when going this route as even if you play badly, but your team wins you will still get the minimum of 500 experience just by being in the game. If you know you can win last worm standing and can find matches, play those and go to for the win as quick as possible. I mixed and matched these when double experience was not up just to keep the game fresh.

Third, is the AFKable way. While this is by no means quick, it is an option. You will want to search for Team deathmatch. A win will get you 500 experience without doing anything. So while it isn't fast, it is a usable way. For comparison sake Level 50 itself is 13,600 experience needed.

Best of luck and Happy Hunting!