Browser Game Engine

If you should create a browser game like travian, what would you use?
And what should be the main features of the engine?

I've done a simply one only using html+php+javascript.

PS: Flash can't be considered as it's not free.
PPS: sorry for my english if i've made mistakes (you can correct me so i can know my mistakes)

Travian appears to be a PHP-based game, but you can also use ASP .net as an alternative. Have a look at this post http://www.blitzbasic.com/Community/posts.php?topic=79227
Any game like those will require a database, most likely accessed by SQL.

Be careful that your game relies as little as possible on Javascript, certainly nothing secure should be handled by Javascript as it is easy to disable or circumvent.

The most ubiquitous solution would be php/mysql. If you don't know php that well, check out "PHP Game Programming" by Matt Rutledge. If you do know php well, then don't bother.

Php & sql. Javascript only to handle dynamic interaction, but NO communication.

As for main features? You should figure that out...anything we would come up with probobly wouldn't be original.

Ok getting a bit biased so I'd like to point out that ASP .net is a perfectly viable alternative...

i know php well but i was thinking about Java.
in my opinion runescape is a good achievement.

if interaction is limited like in travian i think that php/asp + mysql/postresql/other is the best solution with some javascript/ajax.

But i can't figure out how to add more interaction only using php+mysql...
Any ideas?

What kind of interaction do you have in mind?

you could use blitz if you wanted. and use www.osakit.com to put it in the browser.

Should probobly check out the game he used as an example. It's not some 2d retro arcade style game, it's a browser based game.