Papers, please!
It's really quite addictive and a lot of fun. So far I've been bribed by 8 people, jailed for being too honest and have had 3 terrorist attacks on my station. Plus I had to defuse a bomb and deny entry to a crazy old man with a handmade passport.
There is also this weird group called the Order who keep giving me odd stuff to keep for them.
I've decided to save money by killing off my family members and then moving into a better apartment too. Not sure if I can actually do it but I'm withholding food, heating and medicine until they all cark it.