As of January the 12th 2021 you are no longer able to play flash games online meaning you have to download them before playing them. Luckily, it's extremely simple to do.

Now first of all, everything you need is on the "Resources" tab, so I'd reccomend downloading the .swf runner and the .swf file from there to save time.

So to play Murloc RPG:SF you need a .swf file runner. I personally use the "Windows Flash player projector content debugger" from the official adobe flash site: Adobe Flash Player - Debug Downloads (archive.org) I don't know if this specific one I am using is the best but it worked very well for me so I am happy with it.

Secondly, before you download the .swf file know that it may show up as a potentially dangerous file but you can put it into an antivirus program or VirusTotal.com and see it's harmless. With that out of the way, to download the .swf you can go to the "Resources" tab and download the .swf file and then just open it with your .swf file runner but if you want to do it manually to learn how to do it for other games that's alright because I'll teach you how to do it. Go to Murloc RPG on the Newgrounds site which you can also find a link to on the "Resources" tab or just google. Then click CTRL+U to get the code of the site. After that click CTRL+F to find specific text and write ".swf" where you will find the same link that is in the "Resources" tab which begins with "https" where you can copy it and paste it into a new tab and click enter to download it. After that you can just open it using the .swf file runner and you're done.