8.4 version update

8.4 version update

1. Added 2 new heroes
2. Added 2 new heroes and some original hero skins
3. New exclusive weapon system (strengthening talent skills)
4. New skill awakening system (strengthening decomposition skills)
5. Added weekly time-limited relics of the Gate of Dimensions (drops exclusive and skill awakening related props)
6. Added some decomposition skills
7. Added auto-preparation and auto-combat settings for ruins
8. Added Dimensional Stone to Prestige Store (increased Dimensional Gate time)
9. Daily special package adjustment (remove the experience scroll and add the Dimension Stone)
10. Added steam achievement system