As detailed on Steam, Sandbox Mode adds a World Map for switching between towns.
Building temples also increases your research level across your entire empire.
“Six new mountains!”

the Steam changelog adds, like somebody forgetting the lyrics for The Twelve Days of Christmas.
If they’d put that in a footnote I could have made a joke about foothills.
The changelog includes various smaller tweaks.

Got to be surgical, when match-making yaks.
The campaign will arrive with the game’s 1.0 release later this year.