> I've got two questions if anyone can help. First, does the real
> version use different stats? I got two artifacts, 6 characters,
> and some achievements discovered and didn't want to lose them,
> they are.
Your stats and achievement will persist in the full version. And if you get the Steam version then you'll be retroactively awarded any Steam achievement you've got in the demo.
> The other question is if there is any plan on there being a sale
> for the game soon. I know that Steam will probably have a big
> summer sale and if I can save some money on the game that'd
> definitely be worth waiting for.
I couldn't possibly comment on the chances of HSL appearing in the upcoming Steam summer sale ;)