- Dawson Casting: Aloy is 18 years old for most of the game. Ashly Burch was in her twenties while recording her performance. Likewise for Hannah Hoekstra, Aloy's visual model.
- Dueling Works:
- To an extent, with The Legend of Zelda: Breath of the Wild. Both are open world games with the advertising focusing on an archer character fighting giant mechanical enemies, and their respective release dates were less than a week apart, leading to inevitable comparisons and arguments over whether one would eclipse the other. However, the fact that both games are exclusives for different consoles mitigates the rivalry somewhat.
- With NieR: Automata as well. Both are open world action/adventure games that take place After the End fighting robotic enemies with a strong sense of mystery surrounding the setting, strong-willed Action Girl protagonists and plot twists galore, and their release dates were within a week of each other as well.
- And yet again with Mass Effect: Andromeda, which like this game had a strong emphasis on open-world gameplay, exploring automated underground installations, and battling against robotic enemies. The backstories of both games involved an Assimilation Plot for that matter, as well. Unlike the two aforementioned duels, however, the result of this one was pretty clear-cut, with Andromeda earning unimpressive reviews and sales, and a downright hostile reaction from gamers.
- Follow the Leader: While the studio was first seriously considering and working on Horizon Zero Dawn, Enslaved: Odyssey to the West was announced, a game also involving an overgrown postapocalyptic world, a female protagonist, and slumbering predatory machines being awakened. Not wanting to look like they were following the leader the studio tried putting Horizon aside to work on a different pitch, a steampunky alternate history monster mashup. Then it turned out that looked similar to something else that was being produced by another studio, this time one of Sony Interactive Entertainments big exclusives. But they loved the idea of Horizon too much and ultimately just went with it.
- Relationship Voice Actor: This isn't the first time Ashly Burch (Aloy) and Crispin Freeman(Helis) have voiced characters together. Both of them previously had roles in Star Ocean Integrityand Faithlessness where Burch voiced Hana, a Guest-Star Party Member and subordinate to one of the main party members, Victor Oakville, who was vocied by Freeman.
- Spiritual Successor: Lead Writer John Gonzalez previously worked on Fallout: New Vegas and even beneath the surface it's very apparent that he wasn't done with the themes, and in an esoteric way, locations of that game and specifically its Honest Hearts DLC.
- Underage Casting: Also in effect, as Ashly Burch also voices Elisabet Sobeck, who was in her forties.
- What Could Have Been:
- A Noclip documentary reveals numerous early ideas. At one point it was intended to be a co-op game, and the earliest machines designed were all in the vein of the Deathbringer, before it was decided that fighting those felt too much like being a soldier and they preferred the sense of playing a hunter.
- Before Guerilla Games hired John Gonzalez to be the main story writer, Aloy rode a flesh-and-blood horse. Gonzalez nixed this and decided that there were no large nonhuman animals in this world, because if there were horses then anyone could be riding them. Aloy's ability to take a mount had to stand out.
Trivia / Horizon Zero Dawn