Been meaning to talk about the "cargo cult" of Steam wishlists for a while.

Wishlists were originally a genuine expression of interest in purchasing a game. A couple of years ago I worked out a formula that said:

pre-launch wishlists x0.5 = week1 unit sales

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Since then there's been a lot of talk about the importance of wishlists by devs and publishers. And so devs have been trying to get as many wishlists as possible by any means possible.

But what is not often discussed is wishlist QUALITY.

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In advertising it's well known that some clicks are better "quality" that others. Some click sources end up converting into sales at a much higher rate than other sources.

My theory is that wishlists are very much the same in that they have a "quality".

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Some wishlists are from true fans (especially if you've shipped games before) and others are from people who aren't really interested and will wait until the game is 90% off or may never buy it.

Also these days devs beg for people to wishlist their game as a favour.

And gamers think they are helping you out by clicking "wishlist" even though they may have no actual intention of buying it.

So devs blast news about their game everywhere and may end up getting an inflated number of low quality wishlists.

This makes the dev feel reassured especially if they've seen my formula. However, those wishlists are not an accurate representation of interest any more and the dev may be in for a shock when they launch as the conversion could be way lower than 1 sale per 0.5 wishlists.

People often misunderstand how my formula works so please let me clarify:

Your pre-launch wishlists do NOT convert at 50%. What happens is they convert at about 10% (on average) and then you get 4x that amount of organic sales. This = 0.5 sales per wishlist.

That's because the wishlists indicate interest in your game but you make most of your sales organically when it hits the store.

But if you have super-inflated your wishlist count with low quality ones, not many of them will convert and your organic sales will be much lower too.

There are other factors here such as if your launch day offering matches expectation in terms of price (which is often unknown at the time of wishlisting), and maybe what else is launching that day/week etc.