Several DLCs for are Romance of the Three Kingdoms 13 are free right now:

Major Update! Now, you can play ROMANCE OF THE THREE KINGDOMS XIII with English interface & subtitles! Also, the three additional scenarios are free to download for limited time only. Don't miss to own these DLCs too!

About This Game

"The ultimate depiction of the Three Kingdom. A heroic drama of a gathering of Legends." Based on this concept for Romance of the Three Kingdoms 13, we have compiled an experience that will immerse the player deep into the historically turbulent world of the Three Kingdoms, with "human drama," seen through daily interactions both on the battlefield and off between the many heroic characters of the time (all playable), "spectacular battles" shown in majestic battle scenes, "dynamism" expressed across the great land of China in full 3D as each character plots and battles to expand their territory, and much more.
Players will become one of the heroes that lived during the time of the Three Kingdoms and through their actions and decisions will forge their own unique history in that turbulent yet period.

RPG Site has reviewed Romance of the Three Kingdoms 13:

Romance of the Three Kingdoms is a series of classic novels by legendary author Luo Guanzhong who romanticized a tumultuous period in China's history that lasted for over a century as a constant state of conflict left the nation in flux until it was eventually unified under a single banner.

The popularity of these pieces of literature spawned countless TV shows, movies, anime, manga, and of course, a multitude of video games in a variety of genres. None other have had a more successful history with this than Koei Tecmo.

It has been several years since fans in the West have seen an entry in the seminal strategy series, popularized by its exceptional attention to detail and wealth of content. In honor of its 30th anniversary, Koei Tecmo has finally abated our hunger by localizing Romance of the Three Kingdoms XIII.

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Gameplay Footage:

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Score: 8/10

The Historical Sim / Strategy RPG Romance of the Three Kingdoms 13 has been released for the PC:

"The ultimate depiction of the Three Kingdom. A heroic drama of a gathering of Legends." Based on this concept for Romance of the Three Kingdoms 13, we have compiled an experience that will immerse the player deep into the historically turbulent world of the Three Kingdoms, with "human drama," seen through daily interactions both on the battlefield and off between the many heroic characters of the time (all playable), "spectacular battles" shown in majestic battle scenes, "dynamism" expressed across the great land of China in full 3D as each character plots and battles to expand their territory, and much more.
Players will become one of the heroes that lived during the time of the Three Kingdoms and through their actions and decisions will forge their own unique history in that turbulent yet period.