The Playground is one of the only premium decorations of the Postmodern Era and can be built after reaching it. When the Playground is polished its output of happiness is doubled for 12 hours. Decoration does not need a road connection.
+153.33 per tile.
Your decoration can be polished to double the happiness provided to +1,840 for 12 hours.
- ↑ The efficiency is calculated by the happiness it provides divided by the number of squares the building takes up in size.