diff --git a/src/main/kotlin/one/devos/osuv2kt/models/event/AchievementEvent.kt b/src/main/kotlin/one/devos/osuv2kt/models/event/AchievementEvent.kt
new file mode 100644
index 0000000..3aa4e49
--- /dev/null
+++ b/src/main/kotlin/one/devos/osuv2kt/models/event/AchievementEvent.kt
@@ -0,0 +1,8 @@
+package one.devos.osuv2kt.models.event
+
+import com.google.gson.JsonElement
+
+public data class AchievementEvent(
+    public val achievement: JsonElement, // type is supposed to be Achievement but what
+    public val user: EventUser
+)
diff --git a/src/main/kotlin/one/devos/osuv2kt/models/event/Approval.kt b/src/main/kotlin/one/devos/osuv2kt/models/event/Approval.kt
new file mode 100644
index 0000000..620ec23
--- /dev/null
+++ b/src/main/kotlin/one/devos/osuv2kt/models/event/Approval.kt
@@ -0,0 +1,8 @@
+package one.devos.osuv2kt.models.event
+
+public enum class Approval {
+    RANKED,
+    APPROVED,
+    QUALIFIED,
+    LOVED
+}
\ No newline at end of file
diff --git a/src/main/kotlin/one/devos/osuv2kt/models/event/BeatmapPlaycountEvent.kt b/src/main/kotlin/one/devos/osuv2kt/models/event/BeatmapPlaycountEvent.kt
new file mode 100644
index 0000000..2899f46
--- /dev/null
+++ b/src/main/kotlin/one/devos/osuv2kt/models/event/BeatmapPlaycountEvent.kt
@@ -0,0 +1,6 @@
+package one.devos.osuv2kt.models.event
+
+public data class BeatmapPlaycountEvent(
+    public val beatmap: EventBeatmap,
+    public val count: Int
+)
diff --git a/src/main/kotlin/one/devos/osuv2kt/models/event/BeatmapsetApproveEvent.kt b/src/main/kotlin/one/devos/osuv2kt/models/event/BeatmapsetApproveEvent.kt
new file mode 100644
index 0000000..3c2e0e4
--- /dev/null
+++ b/src/main/kotlin/one/devos/osuv2kt/models/event/BeatmapsetApproveEvent.kt
@@ -0,0 +1,7 @@
+package one.devos.osuv2kt.models.event
+
+public data class BeatmapsetApproveEvent(
+    public val approval: Approval,
+    public val beatmapset: EventBeatmapset,
+    public val user: EventUser
+)
diff --git a/src/main/kotlin/one/devos/osuv2kt/models/event/BeatmapsetDeleteEvent.kt b/src/main/kotlin/one/devos/osuv2kt/models/event/BeatmapsetDeleteEvent.kt
new file mode 100644
index 0000000..57c3cb2
--- /dev/null
+++ b/src/main/kotlin/one/devos/osuv2kt/models/event/BeatmapsetDeleteEvent.kt
@@ -0,0 +1,5 @@
+package one.devos.osuv2kt.models.event
+
+public data class BeatmapsetDeleteEvent(
+    public val beatmapset: EventBeatmapset
+)
diff --git a/src/main/kotlin/one/devos/osuv2kt/models/event/BeatmapsetReviveEvent.kt b/src/main/kotlin/one/devos/osuv2kt/models/event/BeatmapsetReviveEvent.kt
new file mode 100644
index 0000000..69e9941
--- /dev/null
+++ b/src/main/kotlin/one/devos/osuv2kt/models/event/BeatmapsetReviveEvent.kt
@@ -0,0 +1,6 @@
+package one.devos.osuv2kt.models.event
+
+public data class BeatmapsetReviveEvent(
+    public val beatmapset: EventBeatmapset,
+    public val user: EventUser
+)
diff --git a/src/main/kotlin/one/devos/osuv2kt/models/event/BeatmapsetUpdateEvent.kt b/src/main/kotlin/one/devos/osuv2kt/models/event/BeatmapsetUpdateEvent.kt
new file mode 100644
index 0000000..9d38400
--- /dev/null
+++ b/src/main/kotlin/one/devos/osuv2kt/models/event/BeatmapsetUpdateEvent.kt
@@ -0,0 +1,6 @@
+package one.devos.osuv2kt.models.event
+
+public data class BeatmapsetUpdateEvent(
+    public val beatmapset: EventBeatmapset,
+    public val user: EventUser
+)
diff --git a/src/main/kotlin/one/devos/osuv2kt/models/event/BeatmapsetUploadEvent.kt b/src/main/kotlin/one/devos/osuv2kt/models/event/BeatmapsetUploadEvent.kt
new file mode 100644
index 0000000..565c834
--- /dev/null
+++ b/src/main/kotlin/one/devos/osuv2kt/models/event/BeatmapsetUploadEvent.kt
@@ -0,0 +1,6 @@
+package one.devos.osuv2kt.models.event
+
+public data class BeatmapsetUploadEvent(
+    public val beatmapset: EventBeatmapset,
+    public val user: EventUser
+)
diff --git a/src/main/kotlin/one/devos/osuv2kt/models/event/EventBeatmap.kt b/src/main/kotlin/one/devos/osuv2kt/models/event/EventBeatmap.kt
new file mode 100644
index 0000000..83199e9
--- /dev/null
+++ b/src/main/kotlin/one/devos/osuv2kt/models/event/EventBeatmap.kt
@@ -0,0 +1,6 @@
+package one.devos.osuv2kt.models.event
+
+public data class EventBeatmap(
+    public val title: String,
+    public val url: String
+)
diff --git a/src/main/kotlin/one/devos/osuv2kt/models/event/EventBeatmapset.kt b/src/main/kotlin/one/devos/osuv2kt/models/event/EventBeatmapset.kt
new file mode 100644
index 0000000..31655ea
--- /dev/null
+++ b/src/main/kotlin/one/devos/osuv2kt/models/event/EventBeatmapset.kt
@@ -0,0 +1,6 @@
+package one.devos.osuv2kt.models.event
+
+public data class EventBeatmapset(
+    public val title: String,
+    public val url: String
+)
diff --git a/src/main/kotlin/one/devos/osuv2kt/models/event/EventType.kt b/src/main/kotlin/one/devos/osuv2kt/models/event/EventType.kt
index 7e39039..75f2d07 100644
--- a/src/main/kotlin/one/devos/osuv2kt/models/event/EventType.kt
+++ b/src/main/kotlin/one/devos/osuv2kt/models/event/EventType.kt
@@ -1,3 +1,17 @@
 package one.devos.osuv2kt.models.event
 
-public data class EventType()
+public data class EventType(
+    public val achievement: AchievementEvent,
+    public val beatmapPlayground: BeatmapPlaycountEvent,
+    public val beatmapsetApprove: BeatmapsetApproveEvent,
+    public val beatmapsetDelete: BeatmapsetDeleteEvent,
+    public val beatmapsetRevive: BeatmapsetReviveEvent,
+    public val beatmapsetUpdate: BeatmapsetUpdateEvent,
+    public val beatmapsetUpload: BeatmapsetUploadEvent,
+    public val rank: RankEvent,
+    public val rankLost: RankLostEvent,
+    public val userSupportAgain: UserSupportAgainEvent,
+    public val userSupportFirst: UserSupportFirstEvent,
+    public val userSupportGift: UserSupportGiftEvent,
+    public val usernameChange: UsernameChangeEvent
+)
diff --git a/src/main/kotlin/one/devos/osuv2kt/models/event/EventUser.kt b/src/main/kotlin/one/devos/osuv2kt/models/event/EventUser.kt
new file mode 100644
index 0000000..c99daf4
--- /dev/null
+++ b/src/main/kotlin/one/devos/osuv2kt/models/event/EventUser.kt
@@ -0,0 +1,9 @@
+package one.devos.osuv2kt.models.event
+
+public data class EventUser(
+    public val username: String,
+    public val url: String,
+
+    // only for usernameChange event
+    public val previousUsername: String?
+)
diff --git a/src/main/kotlin/one/devos/osuv2kt/models/event/RankEvent.kt b/src/main/kotlin/one/devos/osuv2kt/models/event/RankEvent.kt
new file mode 100644
index 0000000..dece06a
--- /dev/null
+++ b/src/main/kotlin/one/devos/osuv2kt/models/event/RankEvent.kt
@@ -0,0 +1,11 @@
+package one.devos.osuv2kt.models.event
+
+import one.devos.osuv2kt.models.Ruleset
+
+public data class RankEvent(
+    public val scoreRank: String,
+    public val rank: Int,
+    public val mode: Ruleset,
+    public val beatmapset: EventBeatmapset,
+    public val user: EventUser
+)
diff --git a/src/main/kotlin/one/devos/osuv2kt/models/event/RankLostEvent.kt b/src/main/kotlin/one/devos/osuv2kt/models/event/RankLostEvent.kt
new file mode 100644
index 0000000..3098f6f
--- /dev/null
+++ b/src/main/kotlin/one/devos/osuv2kt/models/event/RankLostEvent.kt
@@ -0,0 +1,9 @@
+package one.devos.osuv2kt.models.event
+
+import one.devos.osuv2kt.models.Ruleset
+
+public data class RankLostEvent(
+    public val mode: Ruleset,
+    public val beatmap: EventBeatmap,
+    public val user: EventUser,
+)
diff --git a/src/main/kotlin/one/devos/osuv2kt/models/event/UserSupportAgainEvent.kt b/src/main/kotlin/one/devos/osuv2kt/models/event/UserSupportAgainEvent.kt
new file mode 100644
index 0000000..b4ae1d4
--- /dev/null
+++ b/src/main/kotlin/one/devos/osuv2kt/models/event/UserSupportAgainEvent.kt
@@ -0,0 +1,5 @@
+package one.devos.osuv2kt.models.event
+
+public data class UserSupportAgainEvent(
+    public val user: EventUser
+)
diff --git a/src/main/kotlin/one/devos/osuv2kt/models/event/UserSupportFirstEvent.kt b/src/main/kotlin/one/devos/osuv2kt/models/event/UserSupportFirstEvent.kt
new file mode 100644
index 0000000..1f4b778
--- /dev/null
+++ b/src/main/kotlin/one/devos/osuv2kt/models/event/UserSupportFirstEvent.kt
@@ -0,0 +1,5 @@
+package one.devos.osuv2kt.models.event
+
+public data class UserSupportFirstEvent(
+    public val user: EventUser
+)
diff --git a/src/main/kotlin/one/devos/osuv2kt/models/event/UserSupportGiftEvent.kt b/src/main/kotlin/one/devos/osuv2kt/models/event/UserSupportGiftEvent.kt
new file mode 100644
index 0000000..50ef0d0
--- /dev/null
+++ b/src/main/kotlin/one/devos/osuv2kt/models/event/UserSupportGiftEvent.kt
@@ -0,0 +1,5 @@
+package one.devos.osuv2kt.models.event
+
+public data class UserSupportGiftEvent(
+    public val user: EventUser
+)
diff --git a/src/main/kotlin/one/devos/osuv2kt/models/event/UsernameChangeEvent.kt b/src/main/kotlin/one/devos/osuv2kt/models/event/UsernameChangeEvent.kt
new file mode 100644
index 0000000..9049c96
--- /dev/null
+++ b/src/main/kotlin/one/devos/osuv2kt/models/event/UsernameChangeEvent.kt
@@ -0,0 +1,5 @@
+package one.devos.osuv2kt.models.event
+
+public data class UsernameChangeEvent(
+    public val user: EventUser
+)