Basic level design

Before you begin level design on your computer, you should sketch the level layout—a draft of what the full design may look like. For example, we can sketch a simple level for a platformer game; this example is based on a jungle with many rocky platforms. The player is going to be picking coins and diamonds and also avoiding antagonists.

Then, with whatever computer graphics tool available, you can transfer your sketch to the computer and color it into a more attractive design. (The current design is based on the open-source platformer game assets provided at http://opengameart.org/content/gfxlib-fuzed).

And the following screenshot shows what my final game should look like with a few edits, coins, diamonds, and antagonists:

Getting your assets ready

Having all your assets ready is very important, which includes all the sprites you will need and the tile set of your level. The tile set design is just a fragmentation of the finished sketch you made previously; breaking them...