You're probably trying for SUN Classic

It is the AC (Area Conquest) System is one of the most important features that rewards users as they complete various tasks. Instead of the typical quest system SUN Classic Heim, each action made by players is counted and awarded.

Check-ins completed by players in the game for seven and fourteen days will earn special rewards such as The Evolution Stone and an event exclusive title: The Pioneer. Additionally there is the Level UP Event offers players who have completed certain mission levels with perks for leveling up on their AC system. Additionally, players will receive amazing rewards once they have completed the 10 missions.

Additionally, WEBZEN continues to run a Refer-a-Friend promo until March 16th. If users refer their referral URLs to pre-registration with friends, they will receive no-cost in-game rewards like Runestone, 5 Blessing of Goddess Master's Kit and many more.

The "SUN Classic" service will begin from March Japan, South Korea, and Taiwan. A reboot version of MMORPG "SUN" compatible with PC. Today (January 27, 2022), WEBZEN will offer the service of the reboot version "SUN Classic" of the MMORPG "SUN" (Soul of the Ultimate Nation) for PCs in Japan, South Korea, and Taiwan.MarchAnnounced that it will start in. Alongside the announcement SUN Classic Heim buy, WEBZEN has also released the original music of SUN Classic on its official YouTube channel.