Zenkai2 is classic Metin2 as it was in its golden era: level 99, the classic world up to the Grotto of Exile, all three kingdoms and 3x EXP.
6 item rarities: Common, Uncommon, Rare, Epic, Legendary and Mythic. Every weapon and armour drops with one, rarer gear is much stronger, and everyone sees it on you.
Bosses with rarities: every map boss spawns with a rarity, and a rarer boss drops rarer loot. One chest per kill, and everyone fights over it.
One Marketplace for all 3 kingdoms: Shinsoo, Chunjo and Jinno trade together, with a live list on zenkai2.com.
3 dungeons: Ape Dungeon, Spider Nest and Demon Tower, with tickets in rarities.
Fishing, mining and brewing: fish become potions and buffs, ore becomes upgrade bars.
Gear only from drops: no NPC sells weapons or armour.
Rufus, a pet in six rarities.
15 languages: the game, the website and the Discord.
None of the complicated stuff: no alchemy, no pity systems, no item evolution, no story quests.