diff --git a/src/const/world/difficulty.ts b/src/const/world/difficulty.ts
index fc84859b..c1978677 100644
--- a/src/const/world/difficulty.ts
+++ b/src/const/world/difficulty.ts
@@ -62,7 +62,7 @@ export const DIFFICULTY = {
   WAVE_ENEMIES_SPAWN_PAUSE_GROWTH: -0.05, // Enemies spawn pause growth by wave number (Linear)
   WAVE_ENEMIES_SPAWN_PAUSE_GROWTH_MAX_LEVEL: 11, // Level for limit spawn pause growth
   WAVE_EXPERIENCE: 50, // Gained experience per complete wave
-  WAVE_EXPERIENCE_GROWTH: 0.2, // Experience amount growth by wave number (Quadratic)
+  WAVE_EXPERIENCE_GROWTH: 0.25, // Experience amount growth by wave number (Quadratic)
 
   /**
    * Crystals
@@ -73,6 +73,7 @@ export const DIFFICULTY = {
   CRYSTAL_COUNT_GROWTH_MAX_LEVEL: 10, // Level for limit count growth
   CRYSTAL_RESOURCES: 4, // Resources in crystal
   CRYSTAL_RESOURCES_GROWTH: 0.8, // Resources amount growth by wave number (Linear)
+  CRYSTAL_RESOURCES_GROWTH_MAX_LEVEL: 12, // Level for limit resources growth
 
   /**
    * Enemies
@@ -90,7 +91,7 @@ export const DIFFICULTY = {
   ENEMY_DAMAGE: 90, // Attack damage
   ENEMY_DAMAGE_GROWTH: 0.32, // Damage growth by wave number (Linear)
   ENEMY_KILL_EXPERIENCE: 10, // Gained experience per kill enemy
-  ENEMY_KILL_EXPERIENCE_GROWTH: 0.15, // Experience growth by wave number (Quadratic)
+  ENEMY_KILL_EXPERIENCE_GROWTH: 0.28, // Experience growth by wave number (Linear)
 
   /**
    * Builder
diff --git a/src/game/scenes/world/entities/crystal.ts b/src/game/scenes/world/entities/crystal.ts
index 113b756a..318c2aad 100644
--- a/src/game/scenes/world/entities/crystal.ts
+++ b/src/game/scenes/world/entities/crystal.ts
@@ -66,6 +66,7 @@ export class Crystal extends Phaser.GameObjects.Image implements ICrystal, ITile
       defaultValue: DIFFICULTY.CRYSTAL_RESOURCES,
       scale: DIFFICULTY.CRYSTAL_RESOURCES_GROWTH,
       level: this.scene.wave.number,
+      maxLevel: DIFFICULTY.CRYSTAL_RESOURCES_GROWTH_MAX_LEVEL,
     });
 
     return Phaser.Math.Between(
diff --git a/src/game/scenes/world/entities/npc/variants/enemy/enemy.ts b/src/game/scenes/world/entities/npc/variants/enemy/enemy.ts
index 779583f4..e4a06eb5 100644
--- a/src/game/scenes/world/entities/npc/variants/enemy/enemy.ts
+++ b/src/game/scenes/world/entities/npc/variants/enemy/enemy.ts
@@ -214,7 +214,7 @@ export class Enemy extends NPC implements IEnemy {
   }
 
   public onDead() {
-    const experience = progressionQuadratic({
+    const experience = progressionLinear({
       defaultValue: DIFFICULTY.ENEMY_KILL_EXPERIENCE * this.might,
       scale: DIFFICULTY.ENEMY_KILL_EXPERIENCE_GROWTH,
       level: this.scene.wave.number,