Cave Background is one of four of the most common of the four basic blocks found in a new world along with Dirt, Lava, and Rock. Its seed is where lots of other blocks are essentially spliced from, making it an important element in Growtopia. They can be found in newly created worlds, except for some Blasted Worlds.
- Placing two Cave Backgrounds next to each other will cause them to join, creating a continuous pattern.
- When you recycle one, you will get 0 to 1 gem each.