I've never had a game make me feel tense or nervous for a long time, but Papers, Please achieves this. there are 20 endings and a whole host of stories in amongst legal documentation. Reunite the couple with the dodgy paperworks or get those 5 credits to feed your family? Take part in a revolution or just do your job? It's surprisingly deep. It even have some laugh out loud moments with an old man and his terrible hand forged documents. I can't recommend it enough
