For me it was DarkBasic that got me into coding.
I discovered it in a game magazine and immediately downloaded it and it was a whole new world. It had its own weird GUI that was rendered in full screen, and there are almost NO youtube videos of some of the impressive demos like the 3D FPS Yeti game and others.
My early teen years were filled daydreaming of games I could make on it and thinking it was easy because well, Basic, I ended up spending most summers just running other peoples code, creating levels that never saw any use.
edit: nope I was wrong! found this old footage, brings me back memories