The Architect's Patch was a patch for Monaco released on December 17, 2013. It featured the creation of Enhanced mode, added in new features to the original two campaigns, added a PvP campaign strip, and added leaderboards for Enhanced and Zombie modes.
Pocketwatch Games has said that the Architect's Patch cut the game length because statistics showed that many players had lost interest in the game over time. 
- ↑ "The Architect's Patch: Shorter, Better, and Unflinchingly Cut". Pocketwatch Games Blog. http://blog.pocketwatchgames.com/post/70143744556/the-architects-patch-shorter-better-and