Difficult times 2

Monsters have returned to our lands! Undead and goblins are trying to destroy us. Stop them before they reach the portal! Place towers that will attack them! Summon soldiers, place barricades to stop them! You can summon a slowing fog that will appear near the towers and slow down the movement of enemies along the roads. For destroyed enemies, rubies are given, which can be spent on building towers. Use magic, which is gradually restored. Enemies come in different types, some are fast, some have...