I may have to give this a miss then. I made the mistake of installing CM0102 (free download since 2002) recently for old time's sake and kissed goodbye to a solid month before finally managing to go cold turkey.
Alongside original Doom it's probably in my top 2 games, and it's brilliant (and productivity destroying) that both still have so much active development and community around them[1][2], 15-25 years after they were released.