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Science

The technology tree icon

Technologies can be researched using stars. They unlock new abilities, units, and buildings. All tribes, except for Luxidoor and Aquarion, start with a technology that is already researched.

Tech tree HD

The Xin-xi technology tree

Technologies belong to one of three tiers. Tier one (T1) technologies can immediately be researched at the start of the game and initially cost five stars. Tier two and three technologies can be only researched after the T1 or T2 technology of the branch is researched and initially cost six or seven stars, respectively.

The cost to research a technology increases with the number of cities in the tribe's empire. The cost of a technology is calculated as follows:

cost = (tier of technology) × (number of cities) + 4
In other words, for each additional city or village captured, the cost of technologies increases by one, two, or three stars for T1, T2, and T3 technologies, respectively.

The Literacy ability, unlocked with the Philosophy technology, decreases the price of technologies by 20% (rounded up).

To access the technology tree, where new technologies are researched, tap the blue beaker at the bottom of the screen. If you can currently afford a technology, the button will glow blue. If not, it will be black.

List of Technologies

Technology Unlocks Notes
Tier One
Climbing Movement on mountain tiles (including that for explorers), allows players to see ore Native to Xin-Xi
Fishing Fishing, allows players to see whales Native to Kickoo
Hunting Hunting Native to Bardur, replaced with Forest Magic for Elyrion (native to Elyrion)
Organization Gathering fruit, allows players to see crop Native to Imperius
Riding Rider (or Amphibian for Aquarion) Native to Oumaji
Tier Two
Archery Archer (or Ice Archer for Polaris), defence bonus on forest tiles Native to Hoodrick
Farming Farm Native to Zebasi
Forestry Lumber Hut (or Sanctuary for Elyrion), Clear Forest
Free Spirit Temple, Disband Replaced with Free Diving for Aquarion
Meditation Mountain Temple, defence bonus on mountain tiles, Pacifist task Native to Ai-Mo
Mining Mine
Roads Roads, Network task Native to Yădakk
Sailing Ports, Boat, Ship, allows explorers to move on shallow water tiles Replaced with Frostwork for Polaris (native to Polaris)
Shields Defender Native to Quetzali
Whaling Hunt Whale Replaced with Water Magic for Elyrion
Tier Three
Aquatism Water Temple, defence bonus on ocean and shallow water tiles Replaced with Polarism for Polaris
Chivalry Knight, Burn Forest Replaced with Spearing for Aquarion
Construction Windmill, Destroy
Mathematics Sawmill, Catapult
Navigation Battleship, movement on shallow water tiles (for units with carry and explorers), Explorer task Replaced with Polar Warfare for Polaris
Smithery Forge, Swordsman Native to Vengir
Spiritualism Forest Temple, Grow Forest
Trade Customs House (or Ice Bank for Polaris), Wealth task
Philosophy Mind Bender, Literacy Bonus, Genius task
Removed
Engineering Guard Tower, Destroy Diplomacy will replace Engineering as the technology after Shields in the future.

References

Ruin Rewards
Battleship, Crab, Explorer, Giant, Population, Population Growth, Stars, Super Unit, Technology
Game Mechanics
AI Relationships, Combat, Population, Stars, Technology, Terrain, Unit Skills
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