The Legend of Heroes: Trails of Cold Steel[c] is a 2013 role-playing video game developed by Nihon Falcom.

[2] Cold Steel maintains the "AT" (Action Time) battle system, which displays ally versus enemy turns on a bar on the screen.

The class consists of protagonist Rean Schwarzer (a commoner later adopted into a noble family), Alisa Reinford (daughter of the Chairman of an engineering company), Elliot Craig (the son of a famous commander from the Imperial Army), Laura S. Arseid (the daughter of a renowned warrior and noble), Machias Regnitz (the son of the Imperial governor), Jusis Albarea (the heir of one of the four Great Houses), Emma Millstein (a commoner accepted into Thors due to her exceptional grades), Fie Claussell (former member of a jaeger group called Zephyr), Gaius Worzel from the Nord Highlands, and class instructor Sara Valestein (a member of the Bracer Guild).

In the process, the students increasingly come into conflict with a terrorist group later known as the Imperial Liberation Front (secretly backed by the Noble Alliance), led by the masked charismatic leader known only as "C".

During a speech by Osborne regarding Crossbell's recent bid for independence from Erebonia and the neighboring Republic of Calvard, he is assassinated by "C", revealed to be Crow.

In December, Falcom CEO and series producer Toshihiro Kondo said that while the player base was mostly in their 30s when the series was on PC, changing the character designs from Trails from Zero and on had an effect on targeting younger audiences, resulting in Sen no Kiseki's player base being mostly in their late teens to early 20's.

[7] An English localization by Xseed Games was released on December 22, 2015, for PS3 and Vita as The Legend of Heroes: Trails of Cold Steel.

[12] A remastered version for the PlayStation 4, The Legend of Heroes: Trails of Cold Steel I: Kai -Thors Military Academy 1204-, was released in Japan on March 8, 2018.

[23] PlayStation LifeStyle said it is "a role-playing masterpiece with all the right stuff: Xseed's superior localization, which bypasses anime cliches in favor of real depth; an addictive set of life-sim mechanics, from bonding with the lovable cast to cooking a bevy of dishes; and a combat system that rewards customization and cooperation between party members".

[25] Kimberley Wallace of Game Informer stated that, with "fun combat, interesting twists, and a cool social system, Trails of Cold Steel is one of my favorite recent RPGs".

[26] Multiplayer.it said Cold Steel is "complex, deep and varied, and sports surprisingly realistic and mature storyline and setting" and an "unforgettable cast of characters".