Simple + Efficient
Gosu features a simple syntax, no semicolons or other line ending characters. Syntactic sugar is provited in the most needed places, which keeps the amount of code you need to write down, while retaining readability.
1.Dowload latest GOSU distribution
Released April 2017, 1.14.6 is the latest stable release. See also past releases: 1.5 and earlier or 1.6+ (Beginning with 1.6 we release to Maven Central)
JAVA_HOME environment variable to point to the Java install on your machine.
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.