Download size

How many GB is Nuclear Design Bureau?

3 GB

That is less than the typical Simulator game, which needs about 4 GB.

Leave at least 9 GB free: games need headroom to unpack updates.

The figure is the storage Steam lists as required for this game, not a measured download.

Nuclear Design Bureau is a hardcore sandbox engineering game where you design and test nuclear devices. You are a junior engineer at the Kurchatov Institute. The State gives you a target and a warehouse full of dangerous materials. Some directives limit what you are allowed to use. Your job is to build a device that does what the directive asks.