From GameWatcher: “Xenonauts 2 is currently aiming for a late March Steam Early Access release, publisher and developer Goldhawk Interactive has confirmed. The Kickstarter-funded strategy game is currently in closed beta. There, players on the experimental branch can test the building adjacency bonuses feature.
Meant to add some additional nuance to base planning, the feature increases the effectiveness of buildings when built next to other buildings of the same type. Drop a Living Quarters next to another Living Quarters and you’ll get a bonus to your available living space.”