What is Airport?
Airport is an open-source video game for the original Sony Playstation aka PSX/PS1. The player puts himself/herself in the role of an Air Traffic Controller (ATC), where lots of inbound/outbund flights need to be controlled without delays.
What is Airport written with?
Airport is written using an open-source SDK called PSXSDK together with the GNU toolchain. PSXSDK can be freely here. However, a fork was created specifically from the 20150729 version with new experimental features and posted into Github.