"Orcs Must Die!" is a tower defense and action video game developed by Robot Entertainment. Players take on the role of a powerful mage tasked with defending a magical realm from waves of invading orcs and other creatures. The game combines strategic placement of traps and barriers with real-time combat, allowing players to actively engage in the defense. In each level, players can set up various traps, such as spike traps and barricades, to slow down or eliminate enemies. The game features a variety of weapons and spells, enabling players to customize their approach to each challenge. With its engaging gameplay and humorous tone, "Orcs Must Die!" has gained a dedicated fanbase.