Normal, three-dimensional space; as opposed to hyperspace(noun)
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Use "realspace" in a sentence
"In his view, the Supreme Court has gotten the Fourth Amendment horribly wrong in realspace: Its protections are not nearly strong as they should be, reflecting decades’ worth of constitutional mistakes."
"I personally find the non-face-to-face format liberating: it removes all judgment of the character based on the person’s actions/appearance in realspace (the Suspenders of Disbelief tend to get lots of overtime work when the player of a dainty pixie princess digs into his Cheetos, and this dilemma isn’t limited to just LARPing)."
"On it we see the free market of ideas and services flourish even as the politicians try to stamp out civil society in realspace."