LATAM key means you could activate this code in Antigua and Barbuda, Argentina, Barbados, Bermuda, Bolivia, Brazil, Bahamas, Belize, Chile, Colombia, Costa Rica, Cuba, Dominica, Dominican Republic, Ecuador, Falkland Islands (Malvinas), Grenada, French Guiana, South Georgia and the South Sandwich Islands, Guatemala, Guyana, Honduras, Haiti, Jamaica, Saint Kitts and Nevis, Saint Lucia, Mexico, Nicaragua, Panama, Peru, Puerto Rico, Paraguay, Suriname, El Salvador, Uruguay, Saint Vincent and the Grenadines, Venezuela.
I suggest that you can register a new steam account ( Argentina is the best, because most of games are very cheap). You can google how to register a Argentina steam account. (Whether you can activate the key depends on your steam wallet area. But I don't recommend that you change the wallet area of your existing steam account because it violates the steam rules.)
Middle-earth: Shadow of Mordor is an action-packed adventure-RPG inspired by J.R.R. Tolkien's The Hobbit and The Lord of the Rings. Exploring an original story of vengeance and redemption, the game puts players in the role of Talion, a valiant ranger whose family is slain in front of him the night Sauron and his army return to Mordor -- moments before his own life is taken. Resurrected by a Spirit of vengeance and empowered with Wraith abilities, Talion ventures into Mordor and vows to destroy those who have wronged him. Through the course of his personal vendetta, Talion uncovers the truth of the Spirit that compels him, learns the origins of the Rings of Power and ultimately confronts his true nemesis.
Every enemy that players face is a unique individual, differentiated by their personality, strengths and weaknesses. Through the Nemesis System, enemy relationships and characteristics are shaped by player actions and decisions to create personal archenemies that remember and adapt to the player and are distinct to every gameplay session. Gamers are able to craft their own battles, enemies and rewards within the dynamic world that remembers and adapts to their choices, delivering a unique experience to every player.