PC - Steam only. Looking for non stressful but engaging games I wont want to stop playing while I quit smoking. Detailed post.

I need to lock myself in my room for three days while I go through withdrawals because I'm horrible to be around when I quit smoking.

I'm looking for single player PC steam games. The ones you hear about that people fuck up their sleep patterns playing and can't stop.

Some games like this I've played;

Kingdom Come Deliverance + all DLCs (best game of all time IMO). Skyrim. Xcom(s). Stardew Valley. Rimworld. FFX. Loophero.

Games I've bought so far this sale;

Godhood. Craftlands Workshoppe. As far as the eye. Prison architect + dlcs. Battletech + dlcs

Games I'm waiting for 1.0 release of;

MnB 2. Stoneshard. Zompiercer. Anvil saga. Travellers rest.

I'm not interested in;

Triple A titles. Early access. Horror. Multiplayer. Grand strategy.

Thanks in advance.

EDIT;

Just wanted to say thanks for the huge amount of responses. I stopped replying to every comment because in a huge thread like this it's not needed and becomes more about community suggestions for others interested in the same as the OP.

Lots of great suggestions here that unfortunately 80% of i already have.

I've got a couple from the thread I'm looking into today that hopefully will be winners.

Thanks again.