Listed in no particular order:

• Developed from the Smaug 1.8 codebase.
• No stock world - build your own unique places for players to explore.
• Ongoing conversion to more and more C++/STL code.
• Hardened against buffer overflows and other string errors.
• CPU friendly minimal maintenance loop when nobody is online.
• Multiport support, including channels between ports.
• Easier to maintain KEY based area files.
• Percentage based room, mob, and object resets.
• Non-Blocking DNS lookup sysem.
• Portable SHA-256 password encryption for pfiles.
• Base MySQL support built in.
• SQL based Help file system. Available as an addon.
• MCCP/MXP/MSP support for clients that support it.
• Advanced Mudprog capabilities.
• Enhanced immortal host protection for immortal logins.
• Configurable automatic name generation for generic mobs.
• Configirable automatic stat generation for mobs, based on level.
• Configurable automatic experience value generation for mobs, based on level.
• Configurable random treasure generation upon killing mobs, based on areas.
• Diablo 2 style runed weapon customizations based on runes made by your builders.
• Forge your own weapons and armor from ore samples, or have an NPC blacksmith do it for you.
• Oasis OLC port for easy menu based OLC of mobs, objects, and rooms.
• Interactive character generation in game instead of the usual mundane process.
• Guild banks, shops, and forges.
• Guild ranks and roster listings.
• Escrow based automated auction houses.
• 100 PC levels.
• 19 stock races, 11 stock classes.
• Player timezone support.
• Enhanced in-game threaded message board system.
• Copyover/Hotboot that preserves the state of objects and mobiles in play.
• Revamped experience system for PCs.
• Revamped skill learning - no more Smaug skill-powerlevelling.
• Connectable objects that form new objects, or pieces of even more complex objects.
• ANSI colored overland wilderness system with support for multiple continents.
• ANSI colored in-zone mini-map that displays nearby surroundings.
• OLC for the overland, including wide-area floodfilling of terrain.
• Skyships for fast travel on the wilderness.
• Support for arena battles in which players may duel without consequences.
• Dynamic online channel system.
• Channel histories that maintain wizinvis status, socials, and emotes.
• Player customizable color system. Everyone gets their own unique look.
• Color system also recognizes custom names as well as generic tags.
• Multiple interface views for score, group, practice, and skill lists.
• Pets which also save equipment. Pack animals!
• Actively maintained codebase.
• Plus all of the other features which make Smaug great, and more!