'Game with KookminTree' presents the big data game rankings for the second week of May 2026. KookminTree provides weekly rankings based on search big data from major portals. Let’s see what titles have been capturing the attention of gamers this week.

Mobile – Top 10 Stability

Hello. It is time for our second big data game ranking of May 2026. Frankly, it has been a rather quiet week for the Top 10. From the number one spot, 'Aion 2', down to the eighth-ranked 'Goddess of Victory: NIKKE', not a single position shifted among these eight titles. After the chart was shaken up by the arrival of 'I-Hwan' last week, things have settled into a surprising calm.

That is not to say that I-Hwan's momentum has stalled; its early performance is quite sharp. It has widened the gap with the fourth-ranked 'Lineage M' and successfully narrowed the distance to the runner-up, 'Roblox'. Overtaking the top spot next week might be a tall order, but its growing presence fueled by launch hype is undeniable. If it keeps this pace, it certainly has the legs to become a long-term hit.

Meanwhile, 'Imjin War: Counterattack of Joseon', which debuted around the same time as I-Hwan, has finally broken into the Top 10. It climbed two spots to secure ninth place, providing the only real ripple in an otherwise still pond. It will be interesting to see if it can maintain this upward trajectory next week.

Outside the Top 10, 'Wuthering Waves' and 'Pokémon GO' continued to shine, jumping three and six spots respectively. It seems the influence of anniversary events and various campaigns remained potent well into the second week of May.

Additionally, while not quite as explosive, 'Random Dice: GO (27th, +3)' is showing decent metrics. They are hosting an event from May 15th to 25th at the Lotte Department Store Main Branch in Myeongdong, featuring a 'room escape' concept. If you are interested, they will also be running a pop-up store, so do keep that in mind.

Online – Diablo 4 Breaks the Silence

'Diablo 4' has made a notable surge, which stands out all the more given the stagnation in the online game Top 10 this week. It climbed four spots to land in fifth place, seemingly pushing toward its previous peak with impressive momentum.

The driving force behind this is, as we mentioned last week, the new expansion 'Vessel of Hatred'. The core appeal lies in the showdown with Mephisto, the new Spiritborn class, and the planned endgame content. Furthermore, improvements to the storytelling and presentation—addressing the criticisms of the previous expansion—have clearly helped. It is a well-deserved jump, and it is likely to maintain this positive atmosphere throughout May.

Moreover, the long-standing mystery of the 'Cow Level' was recently solved, adding to the intrigue. Revealed within this expansion, the Cow Level is a unique cultural staple of the Diablo IP—a secret Blizzard often denied, yet tucked away inside the games.

Diablo 4 even included an in-game message claiming 'There is no Cow Level,' though naturally, players never bought it. Then, on May 5th, a user released a video showing them actually entering the level and defeating the boss. As news and content spread, it effectively fired up the Diablo 4 community. I highly recommend checking out some of the videos, or better yet, trying to uncover it yourself.

Meanwhile, its rival 'Path of Exile' has also been making headlines with big announcements. 'Path of Exile 2' is now confirmed for a full release before the end of 2026, following a delay from March. Additionally, they are launching the new expansion 'Settlers of Kalguur' on May 30th.

Steam – Confusion in the Top 30

The Steam category saw its quietest week in a long time. There were no standout titles surging ahead in either the top or bottom tiers. While 'It Takes Two' and 'Goose Goose Duck (24th, +4)' showed some movement, the actual increase in metrics relative to the rank shift was negligible. Because the field is so tightly packed, even minor changes trigger sensitive reactions in the rankings.

While the chart remains generally stable, the 30th-place bracket is experiencing a bit more volatility, with titles rising and falling quite clearly. However, none have shown enough presence to highlight just yet, so it is worth keeping a closer eye on the trend.

That said, next week might bring some fresh blood to the charts. Unknown Worlds Entertainment’s 'Subnautica 2' launched on May 15th, and upon starting pre-sales, it immediately soared to the number one spot on Steam’s Global Top Sellers list. This version is currently in Early Access, and the developers expect this phase to last about two years, with continuous updates and content additions planned leading up to the official release.

Pre-registration – A New Rookie Emerges

The Top 3, consisting of 'Sol: enchant', 'Game of Thrones: Kingsroad', and 'Infinity', remains rock solid, and the ranks below them are largely unchanged from last week. However, 'Make Drama: MAD' has appeared, catching everyone's eye. It is a new mobile subculture RPG serviced by Wemade Connect and developed by FluffyDuck.

The game blends an emotional narrative with strategic gameplay. It features a real-time combat system where the flow of battle shifts based on the player’s choices, and it adds a layer of vitality with live illustration-based animations. It will be showcased at the Illustar Fes at KINTEX, Ilsan, on May 23rd and 24th, so if you are visiting, it might be worth a look.