If your goal is to create a non-commercial game I second python. Though you could probably find ways to make that work commercially as well if you package it correctly.
My first big programming project was writing a 2D game in python as a final project in an intro to computer science class. It's pretty quick to translate ideas into working code without having the language semantics getting in your way.
Btw the target platform also matters for which language would be the best (ex. mobile vs desktop). I believe all of @LexaPrime's suggestions assumed you are making a desktop game.