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Science

The technology tree icon.

Technology Tree

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

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, Port, Raft, movement in water, allows players to see starfish Kickoo Polaris: Replaced with Frostwork, unlocks the Outpost and the Mooni

Cymanti: Does not unlock ports or rafts

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 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

Aquaculture Rammer Polaris: Replaced with Ice Fishing, unlocks Fishing

Cymanti: Replaced with Hydrology, unlocks Algae

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 Scout, movement in ocean Polaris: Replaced with Sledding, unlocks the Battle Sled

Cymanti: Replaced with Pescetism, unlocks the Raychi

Strategy Defender, Peace Treaty Quetzali Cymanti: Unlocks the Kiton and Peace Treaty
Whaling (removed) Whale Hunting
Tier Three
Aquatism Water Temple, defence bonus on ocean and water tiles Polaris: Replaced with Polarism, unlocks the Ice Temple and Glide
Chivalry Knight, Destroy ability Aquarion: Replaced with Spearing, unlocks the Tridention and the Destroy ability

Cymanti: Replaced with Shock Tactics, unlocks the Doomux and the Destroy ability

Construction Windmill, Burn Forest 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 Bomber, Starfish Harvesting Polaris: Replaced with Polar Warfare, unlocks the Ice Fortress and Starfish Harvesting

Cymanti: Replaced with Oceanology, unlocks Starfish Harvesting

Smithery Forge, Swordsman Vengir
Spiritualism Forest Temple, Grow Forest ability
Trade Market, 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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