web-based: javscript usually, unity and flash also are a possibility. At one time Java was the choice for this, but not so much anymore. desktop: usually a co

web-based: javscript usually, unity and flash also are a possibility. At one time Java was the choice for this, but not so much anymore. desktop: usually a compiled binary. I've also seen flash and unity compiled to native binaries. Bytecode languages like Java and .NET are also a possibility. app store: iPhone and Android