I'm a bit confused. I was about to buy this, but when I logged into my account, it looks like I already own it? At least the alpha. I already owned a legit co

I'm a bit confused. I was about to buy this, but when I logged into my account, it looks like I already own it? At least the alpha. I already owned a legit copy of Pico-8 and Voxatron...do I get it automatically?