Haven't found one yet. In general you shouldn't trust any crack. That's why you have to check every game with virustotal and restrict internet acces to all of them. Fitgirl posts her repacks there too.
Debian testing is complelty okay. If you want to have the most up to date security use apt to grab sid security updates. https://wiki.debian.org/DebianTesting
Why are yall so mad about GNU and Free Software movement that it has started? Do you prefer to go to the old times? Apple microsoft fanboys?
Doing an entire OS and library to not use GNU it's like Apple doing the LLVM to not having to use the GCC. Instead you could be helping in the free software movement and development, but you prefer to go into a GNU vs. Linux fight.
The war should be all the free software movement vs the companies fake open source shit.
I also need to do this expermient for scientific purposes. Any candidates?