Originally Posted by NunchuckGames
It was quite a bit of work. In terms of other games, it depends on the game and how it's written, as well as how many achievements you set out to implement. We wanted to set a record, so we went a bit overboard.
The other issue is having so many achievements creates a big testing burden. As some of you have seen first hand now, finishing the single player game in 7 or 8 hours is challenging, and you can do that while still missing many of the achievements.
Thanks for the reply. I'm glad you guys went the extra mile and added achievements. I hope more companies follow in your footsteps