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Everything is real-time
With v3, everything in the game is real-time.
If a 3d print (or any other machine or process) takes 1 hour in the real world, it will take 1 hour in the game. Flying to Mars with traditional propulsive rockets will take a whole 5 months at first!
By keeping progression in real-time, processes (and therefore quests) feel more diegetic, grounded in the same timeline players live in. It also makes the game more accessible to people who don't have a lot of time to play, as they can set and forget some long-running process.