September is the best month to play in Online Games (Joke). Let's check changes in the Korean MMO Rankings.
Korean MMORPG Rankings
First we will check MMORPG Rankings and overall Ranking last. Previous Korean MMO Rankings (2015-12-28 ~ 2016-01-03). If you want to register Korean account for any of these games check comments.

Top 20 Korean MMORPG popular rankings
1. Lineage
2. Blade and Soul
3. Maple Story
4. World of Warcraft
5. Aion
6. Lineage 2
7. Icarus
8. Hero
9. Terra
10. Era Zero
11. Rohan
12. Echo of Soul (New Korean server will be open in October)
13. ArcheAge
14. R2
15. Ran Online
16. Baram
17. Prison Tale
18. Dekaron
19. Tianhe my daily Colossus (천하제일상거상) Chibi game, idk who play in this kind of games.
20. Legend of Mir 2

Famous Korean MMORPG in Top 100
28. Ragnarok Online
31. Black Desert
34. Final Fantasy 14
37. Bless Online
63. Maple Story 2

Top 10 Korean Action MMO rankings
1. Cyphers
2. Lost Saga
3. Crazy Arcade
4. World of Tanks
5. Get Amped
6. Grand Chase
7. NX
8. SDGO (Server Closed and SDGO 2 failed very hard)
9. Closers Online
10. Gem Fighter

Overall Rankings
korean mmo rankings part1
korean mmo rankings part 2
korean mmo rankings part 3
korean mmo rankings part 4