LeonardoCornejo: Not really, more like a walking simulator with a politically correct ending. But the player reviews are mixed to negative and the game itself is not something everyoone likes, so those who like it much likelly already own it. Specially since it is coonstantly on sale during seasonal promos.
That's wrong.
Whenever there's a D&D
bundle sale where people aren't allowed to pick games, Forgotten Realms Demon Stone tops the bestseller list, because people don't generally buy it as a standalone.
In this sale, there are limited quantities of each game (refilled over time), and the randomizer prioritizes games which people
don't have (while stocks last), as in, the games they didn't, and largely
wouldn't, buy as standalones. This is why, for example, Supreme League sold out like whoa. Manual owned-to-giftcode conversion is negligible in comparison to people keeping what they got, otherwise GOG would've never run the sale.
Thus, other things being equal (freebies excluded), the greater the supply of mystery gift codes for a particular game, the
better it's been perceived to be: they'd had it, they bought a mystery trying for a game they didn't have, but the less popular ("bad") games had sold out and they got a repeat.