The Precursor Legacy
In The Precursor Legacy there was a very small population of humans to appear in the game, numbering only twenty-one, although it's very possible there were many more humans who simply weren't shown. Every human that was shown to appear lived in a village or a closed off area, and had a sage or mayor to govern and watch over the area. Humans were primarily antagonized by Lurkers, and did not have any formidable warriors with the exception of Jak. They lived in well-isolated and protected areas in order to fortify themselves from the wildlife, but also domesticated animals, such as yakows, which presumably provided them milk and meat based on remarks by Daxter.
Jak II—Jak 3
In Jak II and Jak 3, a long 300 years after the events of the first game, humans increased in population exponentially, and became very technology-oriented. Some humans tended to be somewhat xenophobic against other species, of which the Lurkers are a primary example. This once dominating race under Gol Acheron has now, at the least in Haven City, become nothing more than slaves. Although the situation changed for the Lurkers after the death of the tyrant Baron Praxis.
Humans were at this time antagonized by the Metal Heads, and were clearly the weaker race. One human invented a massive weapon used to destroy the Metal Heads but died before he could use it. Humans also invented the zoomer, the main mode of transportation during this era. They invented numerous other weapons and vehicles, all usually relying on eco to operate. They adapted to high-grade civilizations and city structures, and multiplied in large number. Some were trained in combat known as guards and later soldiers, though others had no combat capabilities or desires whatsoever, aside from Spargus citizens often referred to as "wastelanders", who carried rifles for their personal self-defense.
A savage group of humans also existed known as the Marauders, who lived in the Wasteland outside of Spargus' walls. These mindless beings were used as pawns in Arena of Death challenges, and in the wild were known to kill helpless travelers.
Jak X: Combat Racing
In Jak X: Combat Racing another human-populated city appeared, known as Kras City. At this point the entirety of the world's population exceeded well over two hundred million. Combat racing became a major sport in the world, but crime appeared to be on the rise as violent gang lords rigged the sport and had no second thought to kill anyone in the way.
The Lost Frontier
By the time of The Lost Frontier, a massive eco shortage struck the planet. The Sky Pirates, a destructive group of humans, tried to obtain any source of eco they could find or rob of helpless travelers, hailing mostly from a city known as Far Drop. Aeropa was another human-populated city to appear, and was at least as wealthy (or, as established) as both Haven and Kras. Humans were still under attack from new creatures that terrorized the world, many of them, if not all, due to Duke Skyheed's eco experiments.
Humans in the Jak and Daxter series are very similar to earth humans, the only difference being their long, pointy, elf-like ears. The human body consists of two bipedal legs, a torso, two arms, a neck, and a head, containing two eyes, a nose and a mouth. Most humans featured are fair-skinned, though a few characters have dark skin as well, such as Sig. The humans in the games, unlike real humans, can often carry odd colors of hair such as blue, purple, green, and orange. Humans have sometimes been known to accidentally (or in rare cases, purposefully) transform into other beings such as ottsels, dark beings,[a] and ghosts (seen only at Sector Zero. Some, when overexposed to too much of a color of eco, will have slightly distorted anatomy as seen with sages, whose skin complexion and sometimes hair changes to the respective color of eco. Humans are especially susceptible to death from dark eco and dark eco poisoning (see: Dark Warrior Program).
Humans differ in and have evolved in overall societal habits. Starting in the past (the events of The Precursor Legacy) most, if not all humans existed in an unincorporated manner of life, isolating themselves in villages and hamlets, with a community structure often including the traits of peace, friendliness, survival, and freedom. Most societies were governed by a sage. This is very little if no hierarchy among other human beings, the only known example of leadership being the Mayor of Sandover Village.
Later on, cities and nations were established, and had a far more complex societal hierarchy, ranging from economical classes of low, middle, and upper class, and had various leagues of government such as the Grand Council of Haven City, an established monarchy as seen with the House of Mar, Duke Skyheed and Chancellor Ruskin, and Baron Praxis and Veger. Other forms of government such as lordship were seen as with Damas in Spargus. Other forms of society included gangs, underground rebel movements, wastelanders, marauders, and enslavement.
Humans are fairly capable of adapting to any environment suitable for any other common form of life. At first they are seen constructing villages, and then upgrade to creating nations with industrial structures, wealthy sanctums and palaces, and other quality sights. Humans are incapable of living in wildlife inhabited by antagonizing bodies such as Metal Heads and Lurkers as they are weak, but other than this it is presumed there is no other "survival" factor as long as its not in a desert (as seen in the Wasteland of Spargus), or obvious places such as volcanoes (although there was a small example of a congregation living in the Volcanic Crater).
Most humans are rather timid, though many main characters have portrayed vastly contrasting bold, strong, and brave characteristics. This could be evidence of the strong difference between upper class and lower class introduced in Jak II.
Humans are the second most intelligent race in the world next to the Precursors, having surpassing cognitive capabilities such as speech, mental focus, socialization, reasoning, culture, dialect and emotion, unique from many other species. Some humans also have the ability to channel and/or master eco. Known humans that can channel eco include Jak, Keira, and Maia. Masters of eco, known as eco sages, include the Red Sage, Samos Hagai, Yellow Sage, Blue Sage, Gol Acheron, and Tym.
Other abilities include advanced combative abilities, able to make use of weaponry. They also have mechanical capabilities, seen using many vehicles and devices.
Humans have been known to acquire some of the most powerful weapons on the planet. Starting with Jak II, tasers, rifles, and grenade launchers were introduced, as well as the Morph Gun coming with Blaster, Scatter Gun, Vulcan Fury, and Peace Maker mods. Many weapons include the usage of eco, and are attributed to the habits of eco (such as strength, location, speed, and obliterating functions). Some of the larger, more advanced weapons include Mar's gun, which was a massive structure built from steel, used to blast open the Metal Head nest using the Precursor Stone. Many other weapons such as Blasters, turrets, bombs, and mines were seen as well.
Many vehicles were seen in the Jak and Daxter universe, starting with the A-Grav Zoomer built by Keira (which would later model the production of zoomers in the future). Other vehicles included buggies, airships, flagships, transportation vessels, race cars, tanks, submarines, mounts (see: leaper and flut flut), as well as other forms of zoomers.
Humans commonly made use of Precursor technology and artifacts, using many of their devices to active structures and technology which lead to the discovery of more advanced technology, which aided in the evolution of human life from The Precursor Legacy to Jak II. Some devices include security passes, communicators, and scouts.
- The Making of Jak and Daxter: The Precursor Legacy, "Art Gallery", "Character Descriptions", "sidekick (human form)"
- The Making of Jak and Daxter: The Precursor Legacy, "Art Gallery", "Character Descriptions", "flut flut"
- The Art of Naughty Dog, p. 46
- Naughty Dog (2005). Jak X: Combat Racing. PlayStation 2. Sony Interactive Entertainment.
- Naughty Dog (2012). Jak and Daxter: The Precursor Legacy. PlayStation 3. Sony Interactive Entertainment.