Dear Maintainer,
When some user decide to buy some game data,
the engine project should be remunerated if possible.
I've noticed all links to gog.com on ScummVM wiki end with the same 'pp' hash
(= "Partner Program" ?)
http://gog.com/en/gamecard/teenagent?pp=22d200f8670dbdb3e253a90eee5098477c95c23d
This could be applicable either to other game engines or other data-sources.
If some game-engine doesn't have any 'remunareted id', and is not interrested,
we could default to some global Debian or free software project fund.
Alexandre