Khaian have been researching and creating for centuries more than humans have, and have almost everything they have and then some. Although their history progressed differently, they still have firearms, swords, bows and arrows, although they were created and used differently. They also have a few new weapon types that humans did not have.

FIREARMS:
As for firearms, they began with bullets and metals, moving on later to poisoned capsules and deadly chemical weapons. As time went on, they began the study of lazer and energy based guns, although these weapons had a much shorter reach, and took too much to charge and use. They switched back to guns while they continued research, eventually developing plasma. Plasma was used to create bullets and continuous streams, similar to lazers, and lasted much longer, not requiring a constant energy stream to be used.

BLADES:
Blades progressed nearly the same way that they did with humans. They progressed through swords, daggers, knives, spears, and a few new weapons. These weapons were mostly done away with as time progressed, but it is known that the Khaian are studying on how to produce energy based blades.

CANNONS AND ARTILLERY:
These weapons were largely unused in Khaian history, but when their own space age began, they decided they needed weaponry on their ships- just in case. Artillery began were firearms started, but not for long. They soon upgraded them to energy based attacks, using plasma technology as well as energy tech, as the ships had more access to power than normal firearms would.

BIOWEAPONS:
Yes, bioweapons. These have been in development in Khaian for years, a fact recently discovered by the humans. Although there are no known instances of their usage, they know for a fact that Khaian have a fair understand of how to create these weapons. There is no knowledge on extensive their research is and how damaging these weapons would be, or their scale.

NUKES AND BOMBS:
The Khaian have a variety of different bombs, and they sure don't use hydrogen bombs anymore. They use a form of what they would call antimatter, erupting it in a currently unknown way to cause massive, large scale damage. They also have weaponry of this type that functions in space, sending out shockwaves of EMPs, or even disrupting physics. As with the bioweapons, this information is classified by the Khaian and little is known about it.
 

 

In regards to outside technology, the Khaian have what can be considered upgraded versions of everything human. Biodomes are no more; they have pure terraforming, and they have notably used their abilities with terraforming not to heal, but to destroy. Their ships can travel at exceedingly fast speeds, and they have the technology to perform small-scale jumps. Their versions of AI can understand and translate human languages with easy, and allow for the Khaian to have near instant access to incredible amounts of information.

COMMUNICATIONS:
The Khaian settled with writing for centuries before they began to develop hardware and systems for the process. They had their own form of telephones and cellphones that they used briefly before creating headsets that were born by most everybody for communication. Then, they changed their tech into implants. Originally only used in their military (to ensure soldiers and troops alwayshad their radios on), the implants were later applied to every citizen in their domain.

MEDICINE:
Medicine came about quickly and easily for the Khaian. Despite their reduced need for many medicines, they still went into study. Having to spend less time with vaccinations and symptom relievers, the Khaian moved forward with DNA investigation and analysis. They found many cures for mutation-based diseases early, and later, began a DNA correction process for unborn infants. Their lack of study on basic viruses and illnesses have left them slightly off guard when in contact with human illnesses.

ENGINEERING:
What with their tall, immaculate buildings and hovercraft, it's not surprising that the Khaian exceed expectations with their engineering abilities. Things took off slowly for the Khaian; they lived in caves and mudbrick houses for longer than humans have, or at least that's what is said. But once they figured out how to build with wood and stone and other materials, the science boomed. Now, they mostly live in skyscraper type buildings, or in underground complexes that are incredibly secure and stable.

TRANSPORTATION:
These guys have to get around somehow, right? The Khaian totally skipped over mounts and went directly to automobiles, although of a different kind. These machines were bigger and, thus, were safer, but they had less maneuverability. They soon focused on air based travel, using small vehicles of flight to travel on their own planets and designing massive scale ships for the air. Tanks and seafaring ships were never a Khaian thing. In a sense, the air is their true home.