Gabe Newell is not a video game developer

Yes famously all video game developers are billionaires

Of course they are made to cover costs and make money, but you can cover more costs for future games or ongoing development the game if more people are buying the game, even if it isn’t at full price

I would think it usually implies the opposite

Games on Steam are not usually recurring purchases, one person won’t buy the same product over and over like they need to for food. This means the market of people willing to pay the full price gets saturated over time.

Sales are a way to increase the market size by lowering the “barrier to entry” (price). Sometimes a price will be permanently lowered, however usually not because a temporary sale encourages people to buy now instead of later.

Looks really interesting, a bit like Infinifactory maybe?

And the soundtrack is great too

Inscryption. The less you know going into it, the better.