TBH, I give up. Trying to download from Mega caused my FireFox RAM and CPU to skyrocket, to the point I could not even switch to an admin console and kill it. I had o pull out the power cord and lose everything in my current login session. Upon plugging back in and powering up, Mega is now telling me I have exceeded my monthly quota and have to purchase additional download bandwidth to restart the download.
Given this problem and knowing the game may not even execute on Linux, it is just not worth the effort.
I really do advocate you upload to archive.org. It is free, for you and your end users. It is very fault tolerant, as the webserver supports resuming failed and problem transfers -- which means it also supports use of download managers which can keep (re)trying the download until it completes. It generates .torrent files for users to download via torrent downloaders. And, it may not mean much to you, but it creates an archived "history" of anything ever published without any need for you to provide the resources (servers, disk space, bandwidth, etc). This allows someone in a year/five years/ten years/... from now to download it and give it a try.