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Megastructures adds a new branch to the Engineering Tech tree, with a sequence of new Techs unlocking access to a new resource called Gigamass and all that can be made from it.
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Gigamass is harvested from Dead Worlds (those with a Class of 0), by the new Planet Harvester ship.
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One crucial point to note: Gigamass is a highly limited resource and once all the Dead Worlds on the map have been harvested, aside from some very small amounts generated through Events, that’s all there is. Gigamass is valuable but the AI may be willing to trade their own stocks if you have something they want in return, but generally speaking, it would be wise to carefully examine your own Gigamass stocks and the costs of each Megastructure (or other feature) when planning what you want to spend it on.
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This requires a small amount of Gigamass to build and provides a small amount of Energy: perhaps best used for powering the other new Civilization Achievements requiring Gigamass to construct, such as this Precious Gem Synthesiser, an example of the new Civilization Achievements added with this expansion.
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These might be helpful for civilizations that don’t want or need to build the Megastructures themselves, and to give players some powerful tools and fun tools to help kickstart their campaign a little earlier.
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For greater power generation, you’ll need the first of our titular Megastructures: the Dyson Sphere!
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First though we need a new type of construction ship to build Megastructures: the Stellar Architect.
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Wrapped neatly around a star, this the Dyson Sphere is a titanic construction that harnesses enough energy from its host to power your other Megastructure projects. Different star types will generate different levels of power.
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Stellar Gateways are the next Megastructure type and must be constructed on the hexes surrounding a Black Hole.
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When paired together, these epic-scale portals allow instantaneous travel from one to another, with the ability to link and unlink Stellar Gateways as needed, in the case that you’ve got an odd number of Gates, or you want to alter the destination of one of them.
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