Your site is spreading misinformation, and all in all I would say it does not help rather hurts free culture. It should be called "trulydrummyfishgames", and not "trulylibregames".
First and biggest problem, it specifies "libre game" as something
that you deem libre, then you demonstrate your inability to judge that by refusing to accept permissions from the original authors on multiple accounts. You wrote in the requirements "the author's clear statement of a free license applying to all source code files must be present." and then you deny at least two games with such statements just because. WTF? Who do you think you are to decide an author's permission is good enough or not? Do you see the issue here? It is absolutely fine that you decide what you put in your list, but your wording about being "libre" is very very misleading, and incorrect. This is definitely not a list of libre games, it is a list of drummyfish's favourite games,
HUGE difference.
And what you wrote about Colossal Cave Adventure makes it clear that your site cannot be taken seriously, and you have absolutely no clue how copyright law works. You say Adventure is not libre, because there's no copyright nor license attached. You simply couldn't be more wrong about this. That's not true and legally totally incorrect. In this specific case, since Adventure was first released in 1976, it is abundantly clear because all works published in the USA prior 1978 without copyright notice
are now in the public domain. Without the slightest doubt Adventure is LIBRE, with uppercase letters. Furthermore, E.S.R. has even released
Adventure under BSD license too, if you falsly think PD isn't libre for whatever reason.
So sorry bud, but when it comes to software licenses, I'd rather believe E.S.R. and not you, and I'm sure I'm not alone with this opinion.
I'm pretty sure now you're upset and angry, so DO NOT answer to this post. Take your time, and when you've realized what I wrote is not an attack rather a constructive criticism, fix your site. I'm just trying to help you because you're clearly lost in woods of copyright and licenses.
Cheers,
bzt