[Jolijn]

In business terms, you could consider giving a cut to the modders a marketing expense (you might sell more because the mods increase the value of your game, perhaps?). But you can also consider it as providing a platform that modders exploit commercially, and you can squeeze them as much as is sensible in any commercial relationship.

I think the number of people buying a game because of a mod is rather small, so business people will see things more from the second viewpoint.

[nailer]

Really? I'd never buy Half Life 1, since late 90s graphics looks pretty poor these days, but I'd happily pay for it to use Black Mesa.

Better yet - from another post here:

> "How many copies of Arma 2 were sold explicitly because of DayZ? How many copies of Half-life were sold because of Counter Strike? Warcraft 3 and Dota? etc."