I've tried to get on your server in the past but I can't get a client to run properly,
. The Java one shows a black screen unless I alt/tab (so it shows previews of windows) in which it will show the true screen until I make it the focus again and then it goes black.
Do you mean the CrossCiv server in my sig? If so Crossfire is still very unstable, there is even a certain door that seems to have about a 50% chance of crashing the server when someone opens it. There also seem to be ways of crashing it during character creation. It seems maybe the specific sets of maps most public Crossfire servers us do not, or do not often, find those bugs so in years they still have not been tracked down and fixed.
For years i have been hopiong that the general progress toward elinminating ways in which a mailicious map-designer could design a map capable of crashing a server would eventually fix whatever my particular sets of maps are still managing to find, but no luck with that so far.
Also the link I give for a java based client that in theory browsers could be set up to be able to launch directly from a website is for a daily build, so some days it might work better than others and of course somebrowsers might be wisely set not to run java directly from websites.
Also some distros of some operating systems have quite old versions of Crossfire clients in their installable packages collections, for quite a while because i was using latest sVN to build from no distros at all provided pre-packaged clients up to date enough to work.
It has long ago been pretty firmly refuted that if you build it they will come, so the fact that very few people come via Crossfire clients has, over time, led to support/development effots tending to drift away from that particular set of clients and windows-into-the-Milieu-multiverse to others.
For example CoffeeMUD turned out to be a much more popular doorway, since there are web-based MUD-clients aplenty, compiled MUD clients aplenty for most platforms, and they can be played with just telnet, which presumably any platform that has internet access has in its toolkit.
Right now though you also would find cofeeMUD blocked to you... popularity has its downsides. We are looking into batch sales of player-accounts in order to be able to properly budget servers. You no longer just appear out of no-where and create a character out of nothing, with clothes out of nothing and maybe gear out of nothing, rather your clan or nation or whatever would be buying a batch of 100 or 1000 or whatever user-accounts to divvy up among their members/citizens/whatever as they see fit.
OpenSim though you should find some of our regions currently online on OSgrid, albeit i think the ones online there right now are either unmodified or not much modified linda Kelley OARs no hand-built landscapes with custom new architecture on it there yet.
Then too of course there are web-based systems too, but there too simply allowing random internet passers-by to create whole new villages or planetary mining operations out of nothing had to go, so there you'd first need to get a character on Crossfire or a MUD or some other individual character level of play up to a point where they equipped themselves with enough followers to go found a village or enough space-travel hardware to equip themselves with an intergalactic mining colony ship in order to get into those scales of play.
-MarkM-