Dynasty Warriors: Strikeforce is an action-packed hack-and-slash video game for the Sony PSP, set within an ancient Chinese historical setting. Developed by Omega Force and published by Koei, it's part of the Dynasty Warriors series and was released in 2009. Unlike traditional Dynasty Warriors games, Strikeforce emphasizes more on RPG elements and cooperative multiplayer gameplay, allowing up to four players to team up for missions. Players control heroic characters from the Three Kingdoms period, embarking on quests to defeat hordes of enemies and massive bosses, while upgrading their abilities and gear.