Warforged (from Eberron) came up in another thread and I thought I would start a side discussion about Created beings in fantasy. They are fairly common -- mostly in steampunk, but also outside of it -- but usually have a strong sense of other and often push the boundaries of the genre we broadly refer to as "fantasy." For example, from my perspective, warforged are a very cyberpunk element of Eberron, which already has some pretty strong cyberpunk vibes (such as Dragonmarked Houses as megacorps).
For the purposes of this discussion, i want to identify the Created as those creatures that resemble sci-fi androids: human in form but easily discernable from actual humans (or other races*) who were intentionally created by mortals (usually humans) to do their bidding but have since gained their freedom or are fighting for it.