Please find below some of the things i came up with for a tech tree. I tried, as far as possible, to stick within the technology shown by the series but i guess we can keep some of the FF stuff. Makes it a little easier to do the MOD.
Obviously there are a lot more things that need to be added to this list, especially planetside buildings/improvements.
Techs and benefits:-
Communications lasers - Construct planetary communications network. +1 Happiness +1 Culture.
Planetary construction - 25% faster production of ships on planets. Negated by construction of orbital Shipyard.
Early space exploration - Construct satellite network. +1 Culture.
Space exploration - Construct scout ship
Laser weapons Enables Mk I defence grid. (+20% defence bonus) Required to build corvette and larger sized ships.
Early orbital engineering Construct mining ship (worker)
Suspended animation Enables construction of colony ships.
Fission power Construct nuclear power station +25% Production, -1 Health, -1 Happiness also enables fission engine and fission missiles. Leads to fusion power.
Fusion power Construct fission power station or for a fee player can upgrade nuclear power station.
Removes negative effects of fission power also replaces fission engine with fusion engines. Leads to fusion and plasma weapons.
Fusion and plasma weapons Required to build Corvette and larger sized ships.
Zero gravity training Required to build Corvette and larger sized ships.
Orbital engineering - Construct space station (castle)+2 Culture, construct orbital shipyard +25% faster ship production.
Advanced orbital engineering Enables construction of corvette/frigate sized ships
Hydroponics - +2 Health
X-ray Laser Required for particle weapons research
Particle weapons Required to build destroyer and larger sized ships.
Ship construction Enables construction of destroyer and cruiser sized ships.
Small attack craft - Required to build fighters and bombers
Artificial gravity theory - Required to build destroyer and larger sized ships.
Terra-forming Enables construction of terra-forming plant. This allows settlement of more planets and for greater populations on planets.
First contact protocols - Can only be researched after an alien race has been met or alien artefacts have been discovered.
Language translation - Enables tech trading
Universal language - Enables players to establish an embassy with another race
Xeno-biology Can only be researched after an alien race has been met. +2 health
Ion energy theory Enables research into ion power
Ion power Enables Ion power station
Ion/particle engine - Enables improved engines for ships (increases movement)
Ion weapons Required for Capital ships (dreadnoughts)
Rail weapons Leads to mass drivers. Also increases planetary bombardment damage (as a catapult or trebuchet)
Mass drivers - Increases planetary bombardment damage (Use of these weapons gives negative reactions from other races is like use of nukes)
Organic technology
Data storage - +2 Science
Energy mines Enables Energy mines promotion ( 2 3 first strikes)
Advanced data storage - +2 Science
Doomsday weapon
Galactic diplomacy Enables Babylon Station wonder (UN)
Ground troops - Replaces the planetary defence ship. 1 ground unit per population point on a planet
Marines Carried by invasion ships or troop transports. These units are the only way to capture a star system.
Artificial gravity Increase movement of all units by 50%
Hyperspace theory - Required to build and use hyperspace (jump) gates
Hyperspace vortex generators - Required to build hyperspace (jump) gates
Hyperspace gates Enables construction of hyperspace (jump) gates
Plasma engine
Gravimetric engine
Jump engines Enables destroyer and larger ships ability to enter hyperspace (unit becomes a self
contained airport able to jump from 1 place to another in one turn)
Matter/antimatter
Quantum singularity
ZPF Hyperspace tap
Credit chit Enables trade/intergalactic currency
Obviously there are a lot more things that need to be added to this list, especially planetside buildings/improvements.
Techs and benefits:-
Communications lasers - Construct planetary communications network. +1 Happiness +1 Culture.
Planetary construction - 25% faster production of ships on planets. Negated by construction of orbital Shipyard.
Early space exploration - Construct satellite network. +1 Culture.
Space exploration - Construct scout ship
Laser weapons Enables Mk I defence grid. (+20% defence bonus) Required to build corvette and larger sized ships.
Early orbital engineering Construct mining ship (worker)
Suspended animation Enables construction of colony ships.
Fission power Construct nuclear power station +25% Production, -1 Health, -1 Happiness also enables fission engine and fission missiles. Leads to fusion power.
Fusion power Construct fission power station or for a fee player can upgrade nuclear power station.
Removes negative effects of fission power also replaces fission engine with fusion engines. Leads to fusion and plasma weapons.
Fusion and plasma weapons Required to build Corvette and larger sized ships.
Zero gravity training Required to build Corvette and larger sized ships.
Orbital engineering - Construct space station (castle)+2 Culture, construct orbital shipyard +25% faster ship production.
Advanced orbital engineering Enables construction of corvette/frigate sized ships
Hydroponics - +2 Health
X-ray Laser Required for particle weapons research
Particle weapons Required to build destroyer and larger sized ships.
Ship construction Enables construction of destroyer and cruiser sized ships.
Small attack craft - Required to build fighters and bombers
Artificial gravity theory - Required to build destroyer and larger sized ships.
Terra-forming Enables construction of terra-forming plant. This allows settlement of more planets and for greater populations on planets.
First contact protocols - Can only be researched after an alien race has been met or alien artefacts have been discovered.
Language translation - Enables tech trading
Universal language - Enables players to establish an embassy with another race
Xeno-biology Can only be researched after an alien race has been met. +2 health
Ion energy theory Enables research into ion power
Ion power Enables Ion power station
Ion/particle engine - Enables improved engines for ships (increases movement)
Ion weapons Required for Capital ships (dreadnoughts)
Rail weapons Leads to mass drivers. Also increases planetary bombardment damage (as a catapult or trebuchet)
Mass drivers - Increases planetary bombardment damage (Use of these weapons gives negative reactions from other races is like use of nukes)
Organic technology
Data storage - +2 Science
Energy mines Enables Energy mines promotion ( 2 3 first strikes)
Advanced data storage - +2 Science
Doomsday weapon
Galactic diplomacy Enables Babylon Station wonder (UN)
Ground troops - Replaces the planetary defence ship. 1 ground unit per population point on a planet
Marines Carried by invasion ships or troop transports. These units are the only way to capture a star system.
Artificial gravity Increase movement of all units by 50%
Hyperspace theory - Required to build and use hyperspace (jump) gates
Hyperspace vortex generators - Required to build hyperspace (jump) gates
Hyperspace gates Enables construction of hyperspace (jump) gates
Plasma engine
Gravimetric engine
Jump engines Enables destroyer and larger ships ability to enter hyperspace (unit becomes a self
contained airport able to jump from 1 place to another in one turn)
Matter/antimatter
Quantum singularity
ZPF Hyperspace tap
Credit chit Enables trade/intergalactic currency