Gosu Lab is the easiest way to experiment with Gosu:
- Download the latest Gosu distribution
- Set the
JAVA_HOMEenvironment variable to JDK 1.8's home, if needed
- Unzip the distribution zip, go to the bin folder and double click on gosu.cmd (or gosu if you are using Linux/Mac)
You can try the bundled example projects like the Life game. Just select Life from the Examples pane and run the game by pressing F5.