JarlFrank
I like Thief THIS much
I mean, I beat the game in 40 hours, more or less, 43 if STEAM is correct. Obviously I didn't complete 100% of the game, but I did a lot, I remember defeating all the enemies on several of the maps, for example. I don't think it's such a long game, I imagine that if you do just the basics you can finish in less than 20 hours. But I agree that after a certain point the game ends up being more of the same and you always end up using the same skills, in the same order.
Are you talking about They are Billions or Xulima? I can't see how it would be possible to finish Xulima that quickly.
I beat Xulima in 37 hours and got all of the achievements apart from hardcore difficulty and ironman. But I also used Cheat Engine's speedhack from about 5 hours into it or so, so at least 30 of those hours were played on 2x speed.