Stencyl has left me with a great 20-minute-ran-through-the-basic-tutorial impression. Stencyl has an astounding number of usable blocks and a custom code block

Stencyl has left me with a great 20-minute-ran-through-the-basic-tutorial impression. Stencyl has an astounding number of usable blocks and a custom code block for the things blocks just can't handle (although, I admit, I don't know how easy that is to use). I'm delighted to see that it even has Kongregate API blocks. My general impression of block based programming tends to be that they've got a handful of blocks and a quickly-thrown together interface, but Stencyl certainly exceeds that with a number of integrated functions (such as a project "market" which makes downloading tutorials painless).