https://www.centos.org/download/ CentOS for Free, please download your ISO also from torrent.
I'm sorry for you, but I honestly use WordPress for free. I use it for various purposes, and I also have many plugins that are free in their basic version.
All GNU/Linux distributions are free, that's what the license says. If it weren't the case, it would violate the license terms.
What you pay for in relation to Linux software are: proprietary software if included (not all, for example, you don't pay for Nvidia drivers), advanced support services for individuals and businesses, services to assist businesses in developing their infrastructure (whether it's servers or desktops).
Canonical has never asked me for money for Ubuntu, the same goes for Linux Mint and other distributions. They all have a free counterpart because someone has questioned Redhat. It should be known that Redhat has Fedora as a free distribution, and it's clearly stated on their website.
Stop trying to convince people that they have to pay for good things.
Without going into technical details, GNU/Linux distributions are free. What you pay for in various forms, such as Pro versions, Advanced versions, or Enterprise versions, are proprietary software and extended support, as I explained earlier.
I have never paid, except voluntarily donating what I could, to use Filezilla, Clonezilla, Gimp, Libreoffice, or other development tools, just as I have not paid for WordPress, which I use and configure daily, and many other pieces of software. Like me, many others here haven't had to pay to get their viewer, to create their own grid.
If you have paid, I'm sorry for you. You should have carefully considered your choices, unless you are a company with special support needs or specific software requirements for your distribution.
The problem here is different. They are seeking money for something that doesn't exist, that has never been presented, not even in a minimally functional alpha state. Here, we're talking about someone who created a viewer for Opensimulator based on the old, no longer updated Alchemy Viewer, and is asking for money for it. It would be more appropriate to directly fund the Alchemy team, like all the programmers who work for FREE on Opensimulator development.
If we are going to support someone, let's support those who dedicate themselves and deliver results, not those who ask for money by selling illusions.