Only one research receiver, it gives you a few starting research items that make the early game a bit more doable, though you unlock them through basic research as well. It also comes with a cute log entry. :) The new critters and plants are very cool. New dupe and critter temperature mechanic as well. Really makes you think differently about some aspects of the game. (and now I really *really* have to build that ice themed rec room with sauna) A practical issue I ran into is that buildings that are not made of snow/ice, start at 20C even when built from colder materials, so building planter tiles for plants that need negative temperature was a bit of a pitfall. Basically also means that you can't build anything from mercury as it'll insta-melt as soon as you build it. I hope that the devs will fix this.