Firstly, we have recently created a Facebook Simutrans fan site, that contains several screenshots and the official logo too. Now you can list Simutrans under your games in your facebook profile and colaborate with images, comments or videos in the wall.
On the other hand, some time ago several people already created a Facebook Simutrans fan group. There are no admins in the group and it’s not very crowded indeed but we expect to boost it with the new fan site. Anyway, the group has 168 members, so it’s growing slow but sure.
We hope you to join us in Facebook in order to promote the game and reach to more potential players.