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Technology Tree

The technology tree of a Xin-xi player with all technology researched.

Science

The technology tree icon

Technology is research that unlocks new resources, buildings, units, and/or abilities. Technology can be researched using stars and discovered in ruins. Each tribe, except for Luxidoor and Aquarion, has a unique starting technology that is unlocked at the start of the game.

Technology is divided into three tiers. Tier one (T1) technology can immediately be researched at the start of the game, while tier two (T2) and tier three (T3) technology can be only researched after the previous technology in their branch is unlocked.

The cost of a technology depends on its tier and the number of cities controlled by the player. Initially, tier one technology cost five stars, tier two cost six, and tier three cost seven. For each additional city the player controls, research costs increase by one, two, or three stars for T1, T2, and T3 technology, respectively. In other words, the cost of a technology is calculated as follows: (technology tier) × (number of cities) + 4.

Literacy

The Literacy icon

Literacy, an ability unlocked by the Philosophy technology, reduces research costs by 33%. (Discounted costs are rounded up to the nearest star.)

List of Technology[]

Technology Unlocks Starting technology of Special tribe modifications
Tier One
Climbing Movement and defence bonus in mountain, allows players to see metal Xin-xi
Fishing Fishing, allows players to see whales Kickoo
Hunting Hunting Bardur, ∑∫ỹriȱŋ (as Forest Magic) ∑∫ỹriȱŋ: Replaced with Forest Magic, unlocks the Polytaur through the Enchant Animal ability
Organization Harvest fruit, allows players to see crop[note 1] Imperius Cymanti: Does not allow player to see crop
Riding Rider Oumaji Aquarion: Unlocks the Amphibian and movement in shallow water

Cymanti: Unlocks the Hexapod

Tier Two
Archery Archer, defence bonus in forest Hoodrick Polaris: Unlocks the Ice Archer and defence bonus in forest

Cymanti: Unlocks the Phychi and defence bonus in forest

Farming Farm Zebasi, Cymanti (modified)

Cymanti: Unlocks the Fungi

Forestry Lumber Hut, Clear Forest ability ∑∫ỹriȱŋ: Unlocks the Sanctuary and the Lumber Hut
Free Spirit Temple, Disband ability Aquarion: Replaced with Free Diving, unlocks the Temple, movement in ocean, and the Disband ability
Meditation Mountain Temple, Pacifist task Ai-Mo
Mining Mine
Roads Roads, Network task Yădakk Cymanti: Unlocks the Mycelium and the Network task
Sailing Port, Boat, Ship, movement on shallow water tiles Polaris (as Frostwork) Polaris: Unlocks the Mooni and the Outpost

Cymanti: Replaced with Hydrology, unlocks the Algae

Strategy Defender, Peace Treaty Quetzali Cymanti: Unlocks the Kiton and Peace Treaty
Whaling Whale Hunting ∑∫ỹriȱŋ: Replaced with Water Magic, unlocks the Navalon
Tier Three
Aquatism Water Temple, defence bonus on ocean and shallow water tiles Polaris: Replaced with Polarism, unlocks the Ice Temple and Glide
Chivalry Knight, Burn Forest ability Aquarion: Replaced with Spearing, unlocks the Tridention and the Burn Forest ability

∑∫ỹriȱŋ: Only unlocks the Knight Cymanti: Replaced with Shock Tactics, unlocks the Doomux

Construction Windmill, Destroy ability Cymanti: Replaced with Recycling, unlocks Decompose
Diplomacy Cloak, Embassy, Capital Vision
Engineering (removed) Guard Tower, Destroy ability
Mathematics Catapult, Sawmill Cymanti: Unlocks the Exida and the Sawmill
Navigation Battleship, movement on ocean tiles, Explorer task Polaris: Replaced with Polar Warfare, unlocks the Battle Sled, the Ice Fortress, and the Explorer task

Cymanti: Replaced with Oceanology, unlocks the Raychi and the Explorer task

Smithery Forge, Swordsman Vengir
Spiritualism Forest Temple, Grow Forest ability
Trade Customs House, Wealth task Polaris: Unlocks the Ice Bank and the Wealth task

Cymanti: Unlocks the Clathrus and the Wealth task

Philosophy Mind Bender, Literacy, Genius task Cymanti: Unlocks the Shaman, Literacy, and the Genius task

Technology Costs[]

# of Cities Tier 1 Tier 2 Tier 3
w/o Literacy w/ Literacy w/o Literacy w/ Literacy w/o Literacy w/ Literacy
0 4 3 4 3 4 3
1 5 4 6 4 7 5
2 6 4 8 6 10 7
3 7 5 10 7 13 9
4 8 6 12 8 16 11
5 9 6 14 10 19 13
6 10 7 16 11 22 15
7 11 8 18 12 25 17
8 12 8 20 14 28 19
9 13 9 22 15 31 21
10 14 10 24 16 34 23
11 15 10 26 18 37 25
12 16 11 28 19 40 27
13 17 12 30 20 43 29
14 18 12 32 22 46 31
15 19 13 34 23 49 33
16 20 14 36 24 52 35
17 21 14 38 26 55 37
18 22 15 40 27 58 39
19 23 16 42 28 61 41
20 24 16 44 30 64 43
21 25 17 46 31 67 45
22 26 18 48 32 70 47
23 27 18 50 34 73 49
24 28 19 52 35 76 51
25 29 20 54 36 79 53
26 30 20 56 38 82 55
27 31 21 58 39 85 57
28 32 22 60 40 88 59
29 33 22 62 42 91 61
30 34 23 64 43 94 63
31 35 24 66 44 97 65
32 36 24 68 46 100 67
33 37 25 70 47 103 69
34 38 26 72 48 106 71
35 39 26 74 50 109 73
36 40 27 76 51 112 75

Notes[]

  1. Zebasi can see crop without needing Organization, since they start with Farming.
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