Hi all,
finished and tested our MMORPG trade script (including incentive system to boost traffic), hope some game owners will test it (our game Cityslaves.com will be pleased to trade with any PBBG having at least a few active players). It's free and open source (code is full of comments, sorry if it's not really optimized yet but shouldn't crash your server no worry).
https://sourceforge.net/projects/mmorpgtrade/ read more and download files here (it's for now ony php/mysql, no crossplatform system).
If you don't want to trade traffic with other webmasters you could use it to trade traffic between your own games : It offers a smart way to handle traffic even if you have yet many shared players playing both games (won't count those but will reward them with your incentive anyway).
The script is aimed to be easy to install and easy to use for your players, those are the steps for them :
Click from reward system on game A => signup or use active account on site B => complete needed action => Find reward tool on game B and click on "reward me now"
(Follow steps in readme.txt to install the code on your game)