Any player who was heavily into PC gaming in the early 2000s would be well aware of a little-known title known as Deus Ex, which blew everyone's minds when it was released. The conspiracy-laden plot coupled with some of the best gameplay at the time made for an experience that is still remembered fondly to this day.
The game was so revolutionary for its time that fans were still clamoring for a new game in the franchise — especially after the disappointment that was Deus Ex: Invisible War. Square Enix finally decided to make this wish a reality with Deus Ex: Human Revolution, which was considered by many to be a fitting return to form for the Deus Ex series.
Human Revolution was an excellent title in every sense of the word, and fans have certainly scoured through each and every aspect of this title in order to find out everything there is to know about this title. However, there are still a few subtle details in this game that some players might have absolutely no idea about.
10 Prosthetics Inspired By The Game Have Been Developed
The art style of Deus Ex: Human Revolution might've certainly been quite excellent, but no one could've predicted how it would inspire one particular industry.
That being said, with the inclusion of so many augmentations in the game — including mechanical limbs — it was only a given that certain prosthetics would also be designed that were inspired by the game's design.
9 DLC Wasn't Initially Planned By The Developer
The Missing Link is an add-on for Deus Ex: Human Revolution that is perhaps the most fitting name for any DLC ever released. The importance of this add-on to the game's story made many people question as to why this wasn't integrated with the final product.
Well, it turns out that the developers didn't initially plan any DLC for the game at all, and work on The Missing Link began very late in the development cycle.
8 There Were Supposed To Be More City Hubs In The Game
The city hubs present in Deus Ex: Human Revolution essentially serve as mini-playgrounds where the player can access a host of objectives using whatever skills they might require.
The number of these hubs in the game was supposed to be higher, but a combination of time and budget limitations ended up putting a stop to that idea.
7 The Endings Would've Had More Nuance To Them
One major criticism of Deus Ex: Human Revolution is the fact that all the endings of the game can be accessed with a simple push of a button, which is as lazy as one can get.
Well, as is the case with the previous two entries on this list, the developers were pretty much forced to adopt this course of action since they simply didn't have the time to integrate the set-ups behind these endings. That being said, all three endings fall exactly under the scope of what Eidos wanted to achieve with this game.
6 The Nigerian Scam Emails In The Game Were Supposed To Be Collectibles
Throughout Human Revolution, inquisitive players who hack every computer terminal in sight are bound to access a bunch of emails centering around a Nigerian scam.
These emails might serve no purpose than to elicit a chuckle or two, but their original purpose was to serve as hidden collectibles that would have a trophy attached to them. However, this was removed from the end product.
5 The Orange And Lemon-Lime Soda Fiasco From The Original Game Makes An Appearance Too
Gunther's gripe about the soda machine mixing up his order in the original Deus Ex is one of the most well-known running gags in the entire series, and it only makes sense that this joke would be referenced in Human Revolution as well.
This comes in the form of a news sticker that reads, "Lan-ri Conglomerate third-quarter report: sales of Lemon-lime triple; Orange drops 37%."
4 Posters For Final Fantasy XXVII Can Be Seen Throughout The Game
With Eidos Montreal being acquired by Square Enix, it only goes without saying that the latter's longest-running video game series would make an appearance in the form of an easter egg in some way or the other.
Eidos didn't disappoint with this, including a cheeky poster for Final Fantasy XXVII that can be found throughout the entire game.
3 A Preacher In The Game Foretells The Gray Death
The callbacks to the original Deus Ex are quite frequent in Human Revolution, with perhaps the most clever reference coming through an unassuming street preacher.
This character mentions a "gray and deadly" sickness that would come "on the backs of 12 kings." This is clearly a premonition of the Gray Death plague that was used by Majestic 12 in their plan for world domination.
2 A Young Tracer Tong Can Be Seen In The Game
Tracer Tong is one of the more important characters in the first Deus Ex, and a pre-order bonus mission actually shows his younger counterpart. In a bid to gain the trust of a local Triad leader, Adam Jensen has to rescue his kidnapped son.
This child turns out to be a young Tracer Tong, who is given some wise words of advice that he echoes later on in his life.
1 The Legendary 0451 Code Makes An Appearance Again
Any player who's into the immersive sim genre will definitely be well aware of the numbers 0451, which have become a staple of the genre since its very first inclusion in the System Shock series.
This four-letter code was perfected in the first Deus Ex, serving as the first code that players get in the game. So, fittingly enough, the first four-number passcode that players get in the game... is 0451.