Take a look at: id Tech 3 - Wikipedia, the free encyclopedia, shows most of them.
Now, who wants to join and code a brand new PPI technique together?

the problem is that you have to create a server with YOUR mod, and people need to connect to YOUR server and they must have "auto download" activated so they can connect and download YOUR mod and play it...

case 1: You need to have a very very popular server (and even with that is not like torrents), and they have to download your mod

case 2: You code a really great mod with alot of work (something like urban terror, etc) and you make a web site, so gamers download your mod from there.... obviously it will be detected as a virus / malware, in a couple of days, and your great work was for nothing

case 3: you make a server with a mod, and you get 10 - 50 people per day... they can connect from everywhere, so you are getting 50 downloads per day, and 1% - 5& us installs? it not worth

and remember you will need to setup your server 24/7 in your box or in your seedbox

its a lot of hard work, and in my opinion it not gonna work unfortunately...

i don't know if there are games with thousands of people per day, even with thousands of people per day, it will be more work than simply upload a couple of torrents...

Set up a few servers, advertise them a little at some popular gaming forums. Then you can also add a little Xfire spreader to the DLL, which would spread messages saying "hey come play at this server".

Now why would it have to be a completely new mod? I know that in Wolfenstein ET, there are loads of random servers where you connect, and one or two small files are downloaded which add some flashy stuff to weapons etc. Just take a normal version of the game, add your DLL to it, and when it is downloading give it a name as if it were downloading a small (few kb) weapons mod.
Also, have the DLL execute the PPI stuff only after reboot. Most people will play in many different servers, so even if they found out it was through the game, they won't even know which server (nice idea troph ). And of course update your mod from time to time to ensure it stays FUD.

Like I said, spread a little through Xfire and you can easily get more than 50 people in your server each day.

Thanks. The Medal of Honor series seems like a good candidate, its just old enough to have a shitload of mods for it. You obviously want popular games, but not brand new games, as they have no mods because people arent bored with the original shit yet. Im looking through hxxp://planetmedalofhonor.gamespy.com/ and there are a shitload of popular mods as well as dedicated server apps.

So, the way I see it, launching a server running the most popular mod/s slightly edited with our own little bundle of death. Now its a matter of getting the "slightly edited" part to happen.

Well lets make it happen then :P
wittyusername if you wanna give this a try add me on msn k?

Urban Terror is now a stand-alone game, it was almost a stand alone game even back when it was first released, a complete mod of every aspect of the game. Im talking about a small mod thats already out there and already popular, so no promoting. Take a popular weapon mod or something and add your own little present to it. People will come join your server just because you are running it. As Ive said, Ive ran a game server with popular mods before, there is no need to promote, run the mod and people will come. Its the feasibility of adding and running a payload to a mod file thats the issue.

If what lackote said about the DLL mods is possible, then we can do this.. I mean coding the DLL with the stuff needed in it isn't too hard.

i undestand, but for example, 1 popular torrent gets 500 downloads in a few hours, a common but not that popular torrent gets 150-200 downloads in a few hours...

so my question is, how many people can you get in your server in the same ammount of time?, the next day will come 100% new people, always?

in my opinion there are more people arround the world that knows what photoshop is, and downloading it, than people playing q3 (just an example)

BUT, if you say you can make more people to download your mod, than downloading a popular torrent, then im in, i can code a mod for you

Only one way to find out..

What you could also do is once you are noticing that you aren't getting a lot of new people joining your server, change the mod you are using, so you will attract a new group of gamers.

Im saying, why not do both? Running a game server is free and uses almost no bandwith unless people are playing on it, and shit, you can always kick/ban them if you want (once they joined and dl'ed your mod of course). The torrent market is already saturated and getting more so every day. I barely do torrents anymore, I have a bunch of different ways I promote PPI, most of them started as a crazy idea like this.

As I just told remkow on icq, right now Im researching what game on the q3 engine is the most popular, and has server side mods with .dll files. I think one of the Medal of Honor series, just trying to narrow it down. Then Ill need to get a copy of the game (downloaded free of course), server app, and server side mod, and set it all up. No point in coding the mod untill I can make sure I have the server with the mod set up and people are actually joining it. Stay tuned for updates.