What world trait causes these hot boulders? I've never seen them before but they are all over this map including several in the starting biome which is quite the hazard!
Here's one which spawned on top of the abyssalite between a slime biome, a rust biome, and space. There's no volcano nearby so I'm not sure if it was really caused by the volcanos trait, but I suppose the associated volcano could have been overwritten by the ruins.
I have now vaccuum sealed 60% of my base, 30% is just walled off with insulated tiles (which are rapidly heating against 300degree biomes), and the remaining 10% is protected by a frozen biome - which I've left in peace because i dont want to dig out the cold!
I'm only getting outside to explore by double waterlocking through my vaccum seal. It's very hard because at least 50% of my surroundings is too hot to dig through without suits, which I don't have yet.
My only real water source is one cool steam vent which is too hot for me to work with. I'm going to have to dig in to a 55 degree noxious biome to get some hydrogen to pump into a drecko farm so i can get some plastic to start trying to cool things.
This is a nice challenge!