The game of Reus takes place on the planet. When the planet is generated all tiles are wasteland. When playing outside of the tutorial you start the game with all 4 giants. Using the advanced settings, you can access planet size.
In the Reus, there are 4 types of planets.
- Tiny, consisting of 50 tiles
- Small, consisting of 75 tiles
- Medium, consisting of 100 tiles
- Large, consisting of 150 tiles (Creating a Large Planet causes alt mode to become enabled.)
You can modify most of the settings for the planet in the advanced set-up menu. The edits in the advanced menu will allow you to change the size of the planet and how you start the planet.