Age of Empires Series Wiki
Civilization Technology tree Strategy
Along the valleys of the Mekong and Chao Phraya, a culture of architects, statesmen, warriors, and religious devotees flourished. Overthrow the king of Khmer, build strategic alliances, and settle the score with your historic rivals. Construct the largest religious monument in the world and amass an unstoppable army of devastating siege weapons. The Khmer unique unit is the Ballista Elephant, a mounted scorpion that can be upgraded to fire two bolts simultaneously.

The Khmer's civilization music theme in the Definitive Edition

The Khmer are a Southeast Asian civilization introduced in Age of Empires II HD: Rise of the Rajas. The Khmer are based on the Khmer Empire, whose capital was Angkor (located in present Cambodia), one of the largest pre-industrial cities. They focus on siege weapons and elephant units, in their case Battle Elephants and Ballista Elephants.

The Khmer are considered to be one of the most unconventional civilizations because of their civilization bonus, the ability to advance to the next age or build other buildings without requirements. This makes the Khmer very flexible when it comes to their build orders and opening up to unconventional and unpredictable strategies. At the same time, said civilization bonus can be seen as a double-edged sword; it can backfire on the player if used inappropriately. As such, the Khmer are designed for experienced players who can maximize the use of the civilization bonus.

As noted, the Khmer are a siege-focused civilization with emphasis on Scorpions and Battle Elephants, which is also reflected in their unique unit, the Ballista Elephant. Subsequent balance patches in the Definitive Edition, however, push the Khmer more into a "jack of all trades" civilization, with infantry as their only noticeable weakness in their tech tree (which is fitting for a civilization that does not need pre-requisites to advance to the next age or build any building).


The Khmer are classified as an elephant and siege civilization, and they really shine in their advertised departments. Their Battle Elephants are particularly dangerous as they get a notable speed boost which, along with Husbandry, effectively addresses their greatest weakness which is the low speed (although they are still not fast enough to escape Halberdiers). Additionally, they get +3 attack out of Tusk Swords which lifts their attack to levels only the Elite War Elephant sits in.

Their cavalry department in general is fairly usable, too, but they are missing key traits such as the Paladin, which is why the Battle Elephant is usually the cavalry unit of choice. The infantry is rather weak without Champions, Squires, Supplies and Plate Mail Armor. Their archers are average even without Thumb Ring, although their Cavalry Archers get Parthian Tactics. The Khmer siege weapons are excellent for one reason: their Scorpions.

They get +1 range from their team bonus and another +1 from Siege Engineers for a total of 9 - enough to outrange Arbalesters, and they get a second bolt fired simultaneously (from Double Crossbow) which greatly increases their damage output. The Ballista Elephant also deserves a mention here as it broadens the versatility in their siege department, but it often struggles to be effective unless used in mass numbers. Their navy is average at best, as they lack the Heavy Demolition Ship and Shipwright, but their Monks leave much to be desired. Their defensive structures are average, and their economy is lacking as well without Two-Man Saw and Guilds, but their farmers can drop off food directly to the player's stockpile.

Campaign appearances[]

The Khmer have a campaign devoted to their civilization: Suryavarman I. They also appear in:

Gajah Mada[]

Suryavarman I[]

This campaign is played as the Khmer.

  • Usurpation
    • Udayavidityavarman I - Enemy
    • Udayavidityavarman's Army - Enemy
    • Angkor - Enemy
    • Local Inhabitants - Ally
  • Quelling the Rebellion
    • Northern Rebels - Enemy
    • Eastern Rebels - Enemy
    • Local Inhabitants - Ally
  • A Dangerous Mission
    • Hostile Locals - Enemy
    • Khmer Empire - Ally
    • Local Inhabitants - Ally
  • Nirvanapada
    • Khmer Rebels - Enemy


Le Loi[]



Unique unit[]

Ballistaelephanticon-DE.png Ballista Elephant: Heavy cavalry siege unit

Unique technologies[]

UniqueTechCastle-DE.png Tusk Swords: Gives Battle Elephants +3 attack.
UniqueTechImperial-DE.png Double Crossbow: Gives Ballista Elephants and Scorpions a second bolt.

Civilization bonuses[]

  • No buildings are required to advance to the next age or to unlock other buildings.
  • Battle Elephants move 10% faster.
  • Farmers don't carry food but rather add it directly to the stockpile without any drop-off, but work 5% slower.
  • Villagers can garrison in Houses.

Team bonus[]

Scorpions have +1 range.


Rise of the Rajas[]

Definitive Edition[]

  • Faith added to the technology tree.
  • Hussar added to the technology tree.
  • Shipwright removed from the technology tree.
  • With update 34699, Farmers no longer require Mills or Town Centers to drop off food.
  • With update 36906, Farmers work 3% slower.
  • With update 36906, the Bombard Cannon is no longer available.
  • Initially could research Supplies. With update 37650, it was removed from their technology tree.
  • With update 42848, farmers work 5% slower.
  • With update 42848, Battle Elephants now move 10% faster.
  • With update 42848, Tusk Swords now costs 300 wood, 450 gold.

Lords of the West[]

  • With update 44725, Treadmill Crane removed from the technology tree.

In-game dialogue language[]

Khmer units speak their namesake, an Austroasiatic language (related to the language spoken by the Vietnamese) spoken as the official language of the modern Cambodia.

Along with the Malay, Khmer is one of the few major languages of mainland Southeast Asia that is non-tonal. It also shares similarities with Malay due to Indian and Sanskrit influence (e.g. Suosdey in Khmer and Swasti in Malay).

  • Female Select 1 Chah? (ចា៎ស់?) — Yes? (female)
  • Male Select 1 Bat? (បាទ?) — Yes? (male)
  • Select 2 Ee suosdey (អេសួរស្ដី) — Hello there
  • Select 3 Triem ruochreal (ត្រៀម​រួចរាល់​) — Ready
  • Select 4 Peap ban chea? (ភាពយបញ្ជា?) — Command?
  • Female Task 1 Chah (ចា៎ស់) — Yes? (female)
  • Male Task 1 Bat (បាទ) — Yes? (male)
  • Task 2 Troemotrauv (ត្រឹមត្រូវ) — All right
  • Female Task 3
  • Male Task 3
  • Female Task 4 Khniom neung teuw ti nouh (ខ្ញុំនឹងទៅទីនេាះ) — I will go there
  • Male Task 4 Phleam phleam (ភ្លាមៗ) — Immediately
  • Build Neak sangsang (អ្នកសាងសង់) — Builder
  • Chop Neak kab ok (អ្នកកាប់អុក) — Woodcutter
  • Farm Neak bramoul (អ្នកប្រមូល) — Gatherer
  • Fish Neak stauchatrei (អ្នកស្ទូចត្រី) — Fisherman
  • Forage Neak bramoul (អ្នកប្រមូល) — Gatherer
  • Hunt Neak bramanh (អ្នកប្រមាញ់) — Hunter
  • Mine Neak chik re (អ្នកជីករ៉ែ) — Mine excavator
  • Repair Neak chuosachoul (អ្នកជួសជុល) — Repairer
  • Select 1 Bat? (បាទ?) — Yes?
  • Select 2
  • Select 3 Peap ban chea? (ភាពយបញ្ជា?) — Command?
  • Move 1 Khniom yol (ខ្ញុំយល់) — I understand
  • Move 2 Khniom neung teuw (ខ្ញុំនឹងទៅ) — I will go
  • Move 3
  • Attack 1 Veaylouk! (វាយលុក!) — Assault!
  • Attack 2 Teuw moukh! (ទៅមុខ!) — Forward!
  • Attack 3 Triem avouth! (ត្រៀមអាវុធ!) — Prepare weapons!
  • Select 1
  • Select 2 Peap ban chea? (ភាពយបញ្ជា?) — Command?
  • Select 3
  • Select 4
  • Move 1
  • Move 2
  • Move 3 Troemotrauv (ត្រឹមត្រូវ) — All right
  • Move 4 Phleam phleam (ភ្លាមៗ) — Immediately
  • Select 1
  • Select 2 Thveu​ neak changban​ vei? (ធ្វើ​អ្នក​ចង់បាន​អ្វី?) — What do you want?
  • Select 3 Hetoavei neak romkhan khniom? (ហេតុអ្វីអ្នករំខានខ្ញុំ?) — Why are you disturbing me?
  • Select 4
  • Move 1 Khniom neung thveuavei del neak suor (ខ្ញុំនឹងធ្វើអ្វីដែលអ្នកសួរ) — I'll do whatever you ask
  • Move 2
  • Move 3
  • Move 4

AI player names[]

When playing a random map game against the computer, the player may encounter any of the following Khmer AI characters:

  • Barom Reachea I (បរមរាមាធិបតី, also known as Dhamkat (ដំខាត់); reigned 1363 to 1370): One of the last kings of the Khmer Empire under the rule of the Thai Kingdom of Ayutthaya. He lead a rebellion against the Ayutthaya Empire before he died after being poisoned by his crucibles, leading to civil war and downfall of Khmer Empire. Father of Ponhea Yat.
  • Indravarman III (ឥន្ទ្រវរ្ម័នទី៣; reigned 1295 to 1308): King of the Khmer Empire, also titled Srindravarman (Khmer: ស្រីន្ទ្រវរ្ម័ន). Upon his ascent to power, he declared Theravada Buddhism as the state religion. Son-in-law of Jayavarman VIII.
  • Jayavarman II (ជ័យវរ្ម័នទី២; reigned 802 to 835): Founder of the Khmer Empire, he unified several parts of Khmer warlord states, marking the beginning of Angkor (great city) era in Cambodia history.
  • Jayavarman VII Mahaparamasaugata (ជ័យវរ្ម័នទី៧; 1125-1218, reigned 1181 to 1218): Regarded as one of the greatest kings in Khmer history and his reign is remembered as the "golden age" of the Khmer Empire. During his reign, he defeated the Champas, expanding his empire to its greatest extent, as well as building the Bayon Temple and hundreds of Buddhist temples.
  • Jayaviravarman (ជយវីរវម៌្ម, reigned 1002 to 1006): Khmer King who dethroned Udayadityavarman I, ruled the Khmer Empire during the civil war before being defeated by Suryavarman I.
  • Ponhea Yat (ពញាយ៉ាត; 1396-1463, reigned 1405 - 1463): The last king of the Khmer Empire who reigned at the age of 11, known by his reigning title as Barom Reachea II (បរមរាជាទី២). After the attack by the Ayutthaya Kingdom in 1436, he was forced to submit his kingdom to the Ayutthaya, ending the Angkor era and beginning the era of the Kingdom of Cambodia, which saw the conquest over Cambodia between the Siamese and the Vietnamese.
  • Rajendravarman II (ជេន្ទ្រវរ្ម័នទី២; reigned 944 to 968): King of the Khmer Empire, described as a great warrior-king who ruled his people kindly.
  • Sangrama (សង្គ្រាម, died in 1065): General under the service of Udayadityavarman II, he was credited for putting down several rebellions against Udayadityavarman II's rule.
  • Suryavarman I (សូរ្យវរ្ម័នទី១; reigned 1006 to 1050): First king of the united Khmer Empire. During his reign, he expanded his territory to the west to Lopburi, including the Menam basin in Thailand, and east into the Mekong basin. After his death in 1050, he gained the posthumous title Nirvanapada (the king who has gone to nirvana) for his Buddhist beliefs.
  • Suryavarman II Paramavishnuloka (សូរ្យវរ្ម័នទី២; reigned 1113 to 1145/1150): King of the Khmer Empire, widely regarded as the greatest king of Khmer Empire, well known for building the Angkor Wat, the largest religious monument in the world.
  • Udayadityavarman I (ឧទយាទិត្យវម៌្មទី១, reigned for only few months in 1002): Succeeded the throne after Jayavarman V, Udayadityavarman I later dethroned by Jayaviravarman in 1002.
  • Yasovarman I (ព្រះបាទយសោវរ្ម័នទី១; reigned 889 - 910): King of the Khmer Empire. His reign is remarkable for various major construction projects, he built several water reservoirs around the new capital of Yasodharapura (later known as Angkor) as well as a hundred monasteries.


  • The bottom left and right of the navigation bar in the user interface display an image of human face based from the statues found in Bayon Temple depicting the face of Avalokiteśvara.
    • This image is also used as the civilization icon of the Khmer in the Definitive Edition.
  • The middle of the navigation bar displays a human-bird creature based on the Garuda, commonly depicted in Angkor reliefs as a symbol of power and is similar to the national emblem of modern Thailand.
  • Khmer Houses can be compared to Atlantean Manors from Age of Mythology: The Titans; both can garrison Villagers. However, Manors support more population, soldiers can garrison inside and also cost some gold alongside wood.
  • They are the only civilization outside most Age of Empires III civilizations (Asian ones, however, need to construct Wonders) that can advance to the next Age without requirements. They also are the only civilization outside of the Age of Empires III civilizations and the Atlantean Citizens of Age of Mythology: The Titans that don't need dropsites for food produced by farms.
  • Until the Definitive Edition, Khmer Battle Elephants were the weakest against conversion as they did not have access to Faith.
  • The original Rise of the Rajas campaign scenario prologues and epilogues consistently mispronounce the name of the civilization. The Definitive Edition re-dub uses the proper pronunciation, better approximated by the spelling "K'mai."
  • The Khmer are the only civilization added in Rise of the Rajas that can train Hand Cannoneers. However, they are also the only Rajas civilization to miss out on the Bombard Cannon. They are also the only Rajas civilization that lack Supplies.
  • In the HD Edition, the Khmer were considered the worst civilization in 1v1 in the Arabia map, as they lacked significant economy bonuses, a confined tactic (only Battle Elephants and Scorpions are strong), lacking early-game economy and late-game trash units. However, after they received their new bonus for farmers, Khmer were considered an extremely powerful and unbalanced civilization in team games, especially on closed maps like Arena, because with the new farm bonus (which did not have a slower workrate, meaning Khmer farmers were too effective for booming and advance to next age much faster than other civilizations), in conjunction with advancing ages without buildings and no building requirement to access others, plus their formerly much faster Battle Elephants (In the Castle Age, Khmer Battle Elephants could outrun foot archers without Husbandry, giving a major advantage for their team), made them able to field overwhelming numbers of them, which could completely destroy enemy bases in a short time. The Khmer also have a wide tech tree with good options for archers, cavalry, siege, and navy. With the farm bonus, this made them the best civilization on various maps. This possibly explains the several nerfs to Battle Elephants (including reducing the Khmer Battle Elephant's speed bonus from 15% to 10%), the removal of Bombard Cannons to give them a weakness against Onagers and Halberdiers, the slower workrate of their farmers, and the increased cost of their Castle Age unique technology Tusk Swords.
  • During the beta, Khmer Villagers could use Houses as dropsites for resources, mostly due to a bug.
  • The Khmer are the only non-India civilization with access to more than one type of elephant unit.

Behind the scenes[]

Although the Khmer are one of the newest civilizations in Age of Empires II series, they have long been considered as the new potential addition by Ensemble Studio. During the development of The Conquerors, Khmer - along with Tibetans and Koreans - were considered as one of the new factions to represent the Far East region. Eventually, the developers picked Koreans because they were impressed with Turtle Ships and attracted by potential sales in South Korea.[1]


Although the Khmer people had already settled in present-day Cambodia since the second millennium BC, larger polities would only emerge from the first century AD on. Along the Mekong river, the kingdom of Funan (68-550) and the kingdom of Chenla (550-802) profited greatly from trade and rice cultivation. However, it was their successor, the Khmer Empire (802-1431), that became the most powerful state during the Middle Ages in mainland Southeast Asia.

A century after the kingdom of Chenla had disintegrated, a local chief from Southeast Cambodia called Jayavarman II (770-834) reunited the different polities through military conquest and marriages. Following his successful expedition, Jayavarman crowned himself God King (Deva Raja) in 802. This ritual act, inspired by Indian Hinduism and local traditions, not only marked the birth of the Khmer empire, but also legitimized the Khmer kings as manifestations of the Hindu gods Shiva or Vishnu. Successive rulers used this power to intervene in many aspects of the Khmer society:

First, kings ordered largescale waterworks. Because monsoons greatly affected water levels, proper irrigation systems were essential for the widespread rice cultivation. At the same time, the government did not try to control production itself. Instead, local officials collected a levy from the traders in the marketplace, which was mainly run by women. Temples served as storage and were connected by an extensive network of roads, facilitating long-distance trade.

Second, Khmer rulers funded extensive building programs as they regularly moved their capital. This relocation was often accompanied by the construction of a new state temple that acted as the center of the city and a place for worshiping the king. Angkor, one of the largest pre-industrial urban areas, consisted of seven capital cities and housed over one thousand temples. In the early twelfth century, Suryavarman II (1113-1150) constructed the most famous state temple, Angkor Wat. Today, the temple is still considered the largest religious complex in the world, testifying to the engineering and architectural skills of the Khmer.

Finally, the king commanded the army. Between the ninth and fourteenth centuries, Khmer rulers continuously conducted military campaigns and conquered much of Southeast Asia. Their major enemies were the Siamese, the Vietnamese, and the Cham, who raided Angkor in 1177 and 1178. The Khmer had no standing army, but relied on appointed captains who were responsible for conscripting peasants in times of war. Aside from this large contingent of peasant infantry, the army deployed war elephants, sometimes mounted with ballistae.

The Khmer not only fought other civilizations. Because kings married multiple women, disputes between different lineages often resulted in civil wars. For example, after Suryavarman I (1002-1049) had claimed the throne, he fought eight years with other contenders. Political instability was inherent to the Khmer society. However, from the fourteenth century on, civil wars became more frequent as rulers were unable to deal with other, structural problems: rice cultivation declined due to a cooling of temperature, the conversion from Hinduism to Theravada Buddhism undermined the legitimacy of kings as divine ruler, and warfare with the Siamese resulted in a continuous loss of territory. Eventually, king Ponhea Yat (1405-1463) abandoned Angkor in 1431, marking the end of the great Khmer Empire.


Video overview[]