diff --git a/konstructor/konstructor.controller.go b/konstructor/engine/engine.controller.go
similarity index 98%
rename from konstructor/konstructor.controller.go
rename to konstructor/engine/engine.controller.go
index c9841c4..c3e5942 100644
--- a/konstructor/konstructor.controller.go
+++ b/konstructor/engine/engine.controller.go
@@ -1,4 +1,4 @@
-package konstructor
+package engine
 
 import (
 	"fmt"
diff --git a/konstructor/konstructor.engine.go b/konstructor/engine/engine.go
similarity index 95%
rename from konstructor/konstructor.engine.go
rename to konstructor/engine/engine.go
index cf775ff..e86a290 100644
--- a/konstructor/konstructor.engine.go
+++ b/konstructor/engine/engine.go
@@ -1,4 +1,4 @@
-package konstructor
+package engine
 
 import (
 	"game/konstructor/entity"
@@ -8,7 +8,7 @@ import (
 )
 
 type Engine struct {
-	Domain     DomainInterface
+	Domain     entity.DomainInterface
 	Controller *Controller
 	Settings   *entity.Settings
 	KContext   *entity.KContext
diff --git a/konstructor/konstructor.utils.go b/konstructor/engine/engine.utils.go
similarity index 97%
rename from konstructor/konstructor.utils.go
rename to konstructor/engine/engine.utils.go
index 291f7a0..5618fc1 100644
--- a/konstructor/konstructor.utils.go
+++ b/konstructor/engine/engine.utils.go
@@ -1,4 +1,4 @@
-package konstructor
+package engine
 
 import (
 	"bytes"
diff --git a/konstructor/konstructor.screen.dialog.go b/konstructor/engine/screen.dialog.go
similarity index 97%
rename from konstructor/konstructor.screen.dialog.go
rename to konstructor/engine/screen.dialog.go
index 4c126c5..285a9d5 100644
--- a/konstructor/konstructor.screen.dialog.go
+++ b/konstructor/engine/screen.dialog.go
@@ -1,4 +1,4 @@
-package konstructor
+package engine
 
 import (
 	"github.com/hajimehoshi/ebiten"
diff --git a/konstructor/konstructor.screen.menu.go b/konstructor/engine/screen.menu.go
similarity index 97%
rename from konstructor/konstructor.screen.menu.go
rename to konstructor/engine/screen.menu.go
index 83230b7..9333c03 100644
--- a/konstructor/konstructor.screen.menu.go
+++ b/konstructor/engine/screen.menu.go
@@ -1,4 +1,4 @@
-package konstructor
+package engine
 
 import (
 	"github.com/hajimehoshi/ebiten"
diff --git a/konstructor/konstructor.screen.playground.go b/konstructor/engine/screen.playground.go
similarity index 92%
rename from konstructor/konstructor.screen.playground.go
rename to konstructor/engine/screen.playground.go
index 51f6a18..168a2a3 100644
--- a/konstructor/konstructor.screen.playground.go
+++ b/konstructor/engine/screen.playground.go
@@ -1,4 +1,4 @@
-package konstructor
+package engine
 
 import (
 	"github.com/hajimehoshi/ebiten"
diff --git a/konstructor/entity/entity.domain.go b/konstructor/entity/entity.domain.go
new file mode 100644
index 0000000..3807996
--- /dev/null
+++ b/konstructor/entity/entity.domain.go
@@ -0,0 +1,10 @@
+package entity
+
+type DomainInterface interface {
+	Init()
+	GetMenu(name string) Menu
+	SetMenu(name string, menu Menu)
+	GetDialog(name string) Dialog
+	SetDialog(name string, menu Dialog)
+	GetLevel(index int) Level
+}
diff --git a/konstructor/entity/konstructor.kcontext.go b/konstructor/entity/entity.kcontext.go
similarity index 100%
rename from konstructor/entity/konstructor.kcontext.go
rename to konstructor/entity/entity.kcontext.go
diff --git a/konstructor/konstructor.go b/konstructor/konstructor.go
index 259096b..dcd6b2b 100644
--- a/konstructor/konstructor.go
+++ b/konstructor/konstructor.go
@@ -1,26 +1,15 @@
 package konstructor
 
 import (
+	"game/konstructor/engine"
 	"game/konstructor/entity"
 
 	"github.com/hajimehoshi/ebiten"
 )
 
-type ContextInterface interface {
-}
-
-type DomainInterface interface {
-	Init()
-	GetMenu(name string) entity.Menu
-	SetMenu(name string, menu entity.Menu)
-	GetDialog(name string) entity.Dialog
-	SetDialog(name string, menu entity.Dialog)
-	GetLevel(index int) entity.Level
-}
-
 type Konstructor struct {
-	Domain     DomainInterface
-	Controller *Controller
+	Domain     entity.DomainInterface
+	Controller *engine.Controller
 	Settings   *entity.Settings
 	KContext   *entity.KContext
 }
@@ -37,7 +26,7 @@ func (k Konstructor) SetWindow() {
 }
 
 func (k Konstructor) Run() {
-	ebiten.RunGame(&Engine{
+	ebiten.RunGame(&engine.Engine{
 		KContext:   k.KContext,
 		Domain:     k.Domain,
 		Controller: k.Controller,
diff --git a/main.go b/main.go
index 3fb726c..c03a33c 100644
--- a/main.go
+++ b/main.go
@@ -3,6 +3,7 @@ package main
 import (
 	"game/domain"
 	"game/konstructor"
+	"game/konstructor/engine"
 	"game/konstructor/entity"
 
 	"github.com/hajimehoshi/ebiten"
@@ -27,7 +28,7 @@ func main() {
 				},
 			},
 		},
-		Controller: &konstructor.Controller{
+		Controller: &engine.Controller{
 			KeyMap: entity.KeyMap{
 				Up:      ebiten.KeyUp,
 				Down:    ebiten.KeyDown,