GTHC-075: Player versus player combat. Players can damage each other in open-world PK, duels, the arenas and guild battles, and chaos points now carry consequences.
GTHC-003, GTHC-041, GTHC-081: Tournament arena. Brackets, betting, the match clock and prizes, with the arena windows shown in the Classic interface.
GTHC-060: Practice arena. One-on-one duels with a level band, win/draw/loss records and an item and coin wager paid to the winner.
GTHC-085: Guild war. Challenge another guild, fight on the scoreboard, plunder and collect the rewards.
Dan battle. The guild-versus-guild arena on its own map, ending on the clock or on a wipe, with draws.
GTHC-074: Job awakening. All fourteen jobs can be reached through their quests, and an awakened job stays after you log out.
GTHC-036: World chat. Messages sent to world chat reach every player.
Helper system. Pair a new player with a mentor, and the pairing and points survive a restart.
Lucky stones and the gamble store. Monsters drop lucky stones that buy items from the gamble store.
GTHC-073, GTHC-090: Quest scroll shop and auto-quest scrolls. The shop sells, and a scroll starts the quest it names.
World change item and experience events. The world change item works, and game masters can run experience-rate events.
Item expiry. Timed items run out when their time is up.
Control panel moderation, news and support. Staff can ban, unban, disconnect and force a password reset from the browser, and publish news.
Server settings from the panel. Rates, the practice arena, guild battles and the world map can be changed without editing data files or restarting.
oldschoolops.com sign-in. An operator can let players log in with their oldschoolops.com account.
First administrator. A new server prints a one-time password that creates the first Super Administrator.