How big can a game be? What about the "limits" of Quest?

I mean, can I create a big game with hundreds of rooms and objects?

I think nobody can say this at the moment. Theoretically there is no limit, but I get some problems now, when I work with my game with 6000 lines of code on my old laptop (walkthrough doesn't work correctly any more).

Pertex, if you're getting bugs like that please report them and I'll a look! Quest should be able to handle huge games without any problems.

Alex, do you have an old laptop with Quest running on it?

Not an especially old one, no...?

This problem with the walkthrough only happens on my old laptop. There is no problem with my other computers so I think you can't reproduce this problem

How much memory does your old laptop have?

Intel Core2 Duo CPU U7700@1,33Hz with 1 GB RAM

May be running low on memory then - could be a memory leak. Check in Task Manager what the memory usage is. On another PC you should see about the same usage, but with more memory it will be able to keep running - still a problem that it's wasting memory though!