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Uncharted Horizons is a fork of Unciv that replaces the technology tree with a research system built on discovery. This wiki is the complete tech-tree design document, v3.125: 35 focus areas and 537 breakthroughs.

Players do not research specific technologies. Instead, they assign research effort to Focus Areas — broad fields of inquiry such as Fire, Farming, or Electricity. Over time, investment in a Focus Area produces Breakthroughs: specific discoveries that grant technologies, units, buildings, or abilities. Some Breakthroughs unlock new Focus Areas.

Start here

1. Discovery Mechanics — research by focus area, the active/spread split, Insight and the discovery roll
2. Breakthrough Tiers — CORE to UNIQUE, cost multipliers and RARE gateway chains
3. Discovery States — Unknown, Revealed and Discovered, and how ideas are revealed
4. Grand Endeavours — directed research towards a revealed breakthrough
5. Competing Solutions — pre-empted alternatives, lock-out, and the Airship Disaster
6. Knowledge Diffusion — how widespread breakthroughs spread, before and after the press and the Internet
7. Environmental Modifiers — how geography and circumstance tilt Insight
8. Eras — era entry, and the Insight span and pace of each era
9. Focus Areas — all 35 foci, how each opens, and how they connect

Endgame and world variation

• FTL Endgame — the science victory: hypotheses, tests, building and the prototype
• FTL in Elemental Worlds — the six FTL methods across both ontologies
• Victories — how the FTL ship and the Generation Ship victories are built in Unciv
• World Truths — the variable laws of physics and the rules that keep them bounded
• Foundational Questions — matter, disease, life and heat: the decisive experiments and understanding tokens
• Worked Example Worlds — no gunpowder, no fusion, no fossil fuels, early steam, springs, Antikythera
• Game Balance Rules — removal and enabling truths, guarantees, trading, Competing Solutions reference

Focus areas

	Focus	Breakthroughs	Eras
🔥	Fire	12	Primitive – Medieval
🌿	Foraging	13	Primitive – Classical
⛏️	Stonework	10	Primitive – Ancient
🔭	Observation	13	Primitive – Early Modern
👥	Social Organization	13	Primitive – Early Modern
🌾	Farming	12	Primitive – Space
🐎	Animal Husbandry	12	Primitive – Medieval
⛰️	Mining	9	Ancient – Space
⚒️	Metallurgy	15	Primitive – Atomic
🏗️	Construction	22	Primitive – Space
⚓	Seafaring	18	Primitive – Atomic
⚔️	Warfare	26	Primitive – Atomic
📐	Mathematics	20	Ancient – Space
🎭	Philosophy and the Arts	19	Primitive – Atomic
💊	Medicine	22	Ancient – Space
💰	Trade	14	Primitive – Space
🧵	Textiles & Materials	8	Primitive – Atomic
💧	Water Management	11	Ancient – Atomic
⚙️	Mechanics	18	Primitive – Atomic
🌡️	Thermodynamics	19	Classical – Space
🧪	Chemistry	23	Classical – Modern
🔍	Optics	7	Ancient – Atomic
⚡	Electricity	11	Classical – Atomic
💻	Electronics	9	Modern – Atomic
🖥️	Computing	19	Modern – Space
☢️	Nuclear Physics	20	Modern – Space
✦	Quintessic Physics	24	Modern – Space
🔬	Quantum Physics	14	Modern – Space
🌌	Relativity & Cosmology	10	Modern – Space
🚀	Rocketry	16	Modern – Space
🔬	Materials Science	13	Atomic – Space
🧬	Genetics	13	Modern – Space
✈️	Aeronautics	20	Early Modern – Space
🛰️	Space Engineering	10	Atomic – Space
⚡	Energy Systems	22	Modern – Space

Reference

• Mechanical Grounding — what a breakthrough may grant in Unciv, and the notation used in the tables
• Base Game Object Assignments — every Civ V wonder, building, improvement and unit mapped to its breakthrough
• Breakthrough Index — every breakthrough, A to Z
• Breakthroughs by Era — every breakthrough, era by era
• Breakthroughs by Tier — every breakthrough, tier by tier
• New Objects — every new building, unit, improvement and resource, with the breakthrough that grants it
• Summary Statistics — counts of foci, breakthroughs and tiers
• Changelog — every revision of the design, newest first

About this wiki

Every page is generated from design/tech_tree.md by design/wiki/build_wiki.py, so edit the document rather than the wiki: a hand edit to a generated page is overwritten the next time the wiki is published. Pages you add yourself are left alone.

Breakthrough IDs link to their entries (hover over one for its name, tier and era); § references link to the section they cite; each focus page lists what its breakthroughs build on and lead to, and draws its prerequisite map.