Fire Emblem: Shadow Dragon & the Blade of Light

It was the game that started the SRPG genre or "strategic role-playing game", along with others like the Shining series. Unfortunately Fire Emblem did not leave Japan, like a lot of others. In this game we manage the army of Altea led by the young prince Marth, on the Akanea continent. To stop Dolhr army, controlled by the Shadow Dragon, who wants to regain control of the continent for the dragons.

Despite having not so good graphics (and for the time) it had a good success in Japan, its strength is in its playability, in addition to having a good difficulty, so if a character died, it died for real. Perhaps Nintendo thought that it was a somewhat weird game for other countries, even when Marth proved to gain a lot of fame in Super Smash Bros. Melee.
This game was also unreleased outside of Japan, except for its remake, until 2020 on Nintendo Switch with an official translation into English as a stand-alone game (though in Japan, still is free with a Online subscription).

• Game's intro:
Our tale begins with the Shadow Dragon, the Blade Falchion, and the... Fire Emblem.