Hello, not sure is appropriate to post it here?
if its not. Please let me know i will remove my post.

If anyone interested to play an offline version of bns with *server emulator* on your pc.

I'm not exactly sure what version are this client and server emulator, the client world-map only open up to Silverfrost mountain. But we manage to use workaround to access the Skybreak Spire 24 man raid and naryu foundry dungeon, some other dungeons which you cannot access from the world-map.

with some modification to the emulator server, we can have very op item that gives item attribute to have buffs, immune damage, hp, attack and defend modifier, skill cool-down instan reset, and others.

The current emulator server features:
Max level 55 HM 25
9 class: Assassin, Blade Dancer, Blade Master, Destroyer, Force Master, Kung Fu Master, Soul Fighter, Summoner, Warlock
Arena 1v1, 3v3, and battleground(untested)
Cross server dungeon (the famous F8)
24 man raid
Unlimited Ncoin topup using the backend topup service
Send any in-game item via php script (web server).
increase drop rate, exp and rewards
lvl 50 creation voucher (mod it to 55)

emulator server is running Windows 2008/2012 and mssql server 2008/2102.
If setup using VMware, enable arena and f8 dungeon you need around 32GB RAM(16gb for the vm) else 16GB(8gb for the vm) is good enough.
bns client is english translated from bluebns pserver, with update language pack file. (local.dat)
added bypass for ncguard and enable multi-client

some screenshot from my testing on my local pc.