At my job, a teenager called Mickael gave me the idea of using an iceberg as a level for a 2D game.

I found the texture and inspiration from Wikimedia Commons (see Iceberg_Bransfield ). I provide here the file of the texture coming from this picture.

I used the sea from Iceberg_Bransfield to make the background of my level for the 2D game, with another picture of stars from Wikimedia Commons (Spitzer'sOrion), as you can see on the small picture.

But these meshes would be better for a 3D game, you just have to move the icebergs as you wish.