Zenva are currently running their end of season sale across all of course Game Development courses. The courses cover all manner of topics: From RPG Game Development with Phaser, to Advanced Game Development, and plenty more.
The discounts are vast. The RPG course for example is down from $149 to $29, with similar discounts across the range.
The courses include video tutorials and resources, and over the years hundreds of students have completed them, and then gone on to release great games of their own.