If the games are no longer in production, it is venial sin at most.
How is it sin? The video game industry no longer works off of capitalism. Instead, it has become a donator-supported industry with the pretense of selling a product. Under the old paradigm it could be considered sin because it would be disrupting the social order for no reason other then personal gain. However, any society changes over time, and the emergence of new technology accelerates the process.
Nowadays the role of a publisher is three-fold. First, to highlight which works are worthy of attention. Second, to make sure works are properly made available. And third, to make sure the money actually reaches the artists
All too often publishers fail at these things, which makes donating money to the artist(s) who made it impossible. At this point downloading a copy couldn’t even be considered piracy because there was no potential sale to begin with. Abandonware sites become the fallback option in this case.
The "pirates’ you often meet online tend to be reasonable, intelligent people. They talk about solutions, while people arguing in favor of copyright tend to talk about problems. Intelligent pro-copyright arguments do exist, but they are surprisingly hard to find. I’m sure there’s some jerk out there that just wants to leech off of torrents and artists alike, but that negative mindset is much more prevalent among supporters of copyright law.
Since this is just a hobby of yours there is no real “need” for you to do this
Indeed, there is no real “need” to do anything in this world. However, once one’s obligations to society are met, people look for something fulfilling to do for the remainder of their time.
Once I got a little older though, I realized it was wrong and deleted all the ROMs and emulators. Now I only play games I have purchased.
Most likely you couldn’t even find a SNES for sale by then, which is why you had to turn to downloading in the first place. I assume by now that you (hopefully!) have a steady job and a regular source of income that you can use to help fund your favorite artists, so therefore you favor buying stuff outright.
Note that only copyrighted ROMs are illegal. Emulators with “homebrew” ROMs are perfectly legal.
I have no way of knowing this without reading through copyright law in its entirety
and reading any and all changes made to said law… Copyright has become so convoluted that I won’t even know where to begin - not that I really care about such a broken set of laws in the first place. If it’s impossible to know the rules, then breaking them becomes inevitable.