I went through with it, and the second game in the Blackwell series is now cleared of all achievements. It was pretty tough to.
First, I went for the Trying to Cut Down achievement. I thought it would be simple and all I had to do was be careful, but I was wrong. On my second playthrough, I counted all the cigarettes and got 13 on my side, but I didn’t get the achievement. At this point, I thought the game is bugged or something, because I was sure I wasn’t even close to 20. I tried to force the game to detect it in several different ways and nothing worked, so I decided to do a second attempt, with a third playthrough. This time, I decided to work on both cases simultaneously, which helped me save some time and I finally got it.
With that out of the way, I went for the Chain Smoker achievement. This one, unlike the previous one, does have bug issues. The most straightforward way to get the achievement would be to just light a cigarette manually, and then handle the TV, phone or radio to put it off and repeat this. The problem is, it often happens that the lighter and the cigarettes become unusable. On the cases that this doesn’t happen, a second bug occurs, where Lauren is constantly claiming she already has a lit cigarette, even though that obviously wasn’t the case.
What I did in the end was that I loaded a save game from the moment after the second case is done and the balcony scene is over. Then I parked Lauren on the balcony and switched to Joey. I left her idle like this for about 45 minutes and then completed the game for the fourth time. I ended up with 111 cigarettes and finally unlocked the last achievement.
In any case, I’m done with the Blackwell series on Steam now. There are a few other adventure games I haven’t completed yet, though, so I might try those, since most are pretty short if they don’t drag you along with bad puzzles.