Research Trees This is just a breakdown of all the current tech tree's and their levels Library Development Tree Cutter - 1 Level Farm Hand I - 5 Levels Lumberer I - 5 Levels Fast Builder I - 5 Levels Veggie Scavenger I - 5 Levels Lumber Scavenger I - 5 Levels Bullet Forger I - 5 Levels Water Buckets - 1 Level Water Producer I - 5 Levels Water Scavenger I - 5 Levels Meat Collector - 1 Level Meat Butcher I - 5 Levels Game Hunter I - 5 Levels Depot Extension - 5 Levels Farm Hand II - 5 Levels Lumberer II - 5 Levels Innovator I - 5 Levels Veggie Scavenger II - 5 Levels Lumber Scavenger II - 5 Levels Bullet Forger II - 5 Levels Water Producer II - 5 Levels Meat Butcher II - 5 Levels Innovator II - 5 Levels Water Scavenger II - 5 Levels Meat Scavenger II - 5 Levels Fast Builder II - 5 Levels Basic Combat Rations - 1 Level Fighter Promotion I - 1 Level Sharpshooter Promotion I - 1 Level Cavalry Promotion I - 1 Level Walker Slayer - 10 Levels Walker Defender - 10 Levels Fighter Promotion II - 1 Level Sharpshooter Promotion II - 1 Level Cavalry Promotion II - 1 Level Walker Fighter Pro - 5 Levels Walker Armor - 5 Levels Gold Rush - 1 Level Resilience - 5 Levels Extra House - 1 Level Extra Hospital - 1 Level Hospital Extension - 15 Levels Fighter Promotion III - 1 Level Sharpshooter Promotion III - 1 Level Cavalry Promotion III - 1 Level Resilience - 10 Levels No Mercy - 10 Levels S2 Basic Combat S2 Fighter Attack - 10 Levels S2 Sharpshooter Attack - 10 Levels S2 Cavalry Attack - 10 Levels S2 Medical Efficiency - 10 Levels S2 Swift Recovery - 10 Levels S2 Hospital Extension - 10 Levels S2 Fighter Defence - 10 Levels S2 Sharpshooter Defence - 10 Levels S2 Cavalry Defence - 10 Levels S2 Fighter Rations - 10 Levels S2 Sharpshooter Rations - 10 Levels S2 Cavalry Rations - 10 Levels S2 Fighter Health - 10 Levels S2 Sharpshooter Health - 10 Levels S2 Cavalry Health - 10 Levels S2 Medical Efficiency - 10 Levels S2 Swift Recovery - 10 Levels S2 Hospital Extension - 10 Levels S2 Fighters vs Sharpshooters - 5 Levels S2 Sharpshooters vs Cavalry - 5 Levels S2 Cavalry vs Fighters - 5 Levels S2 No Mercy - 10 Levels Melee Training Fighters vs Sharpshooters - 5 Levels Fighter Guards Attack - 10 Levels Fighter Guards Defence - 10 Levels Fighter Guards Health - 10 Levels Fighter Training Efficiency - 10 Levels Fast Fighter Training II - 10 Levels Fighter Rations I - 5 Levels Fighter Siege Attack - 10 Levels Fighter Siege Defence - 10 Levels Fighter Siege Health - 10 Levels Fighter Attack - 10 Levels Fighter Defence - 10 Levels Fighter Health - 10 Levels Fighters vs Sharpshooters - 10 Levels Ultimate Fighter - 1 Level Sharpshooter Training Sharpshooter vs Cavalry- 5 Levels Sharpshooter Guards Attack - 10 Levels Sharpshooter Guards Defence - 10 Levels Sharpshooter Guards Health - 10 Levels Sharpshooter Training Efficiency - 10 Levels Fast Sharpshooter Training II - 10 Levels Sharpshooter Rations I - 5 Levels Sharpshooter Siege Attack - 10 Levels Sharpshooter Siege Defence - 10 Levels Sharpshooter Siege Health - 10 Levels Sharpshooter Attack - 10 Levels Sharpshooter Defence - 10 Levels Sharpshooter Health - 10 Levels Sharpshooter vs Cavalry - 10 Levels Ultimate Sharpshooter - 1 Level Cavalry Training Cavalry vs Fighter - 5 Levels Cavalry Guards Attack - 10 Levels Cavalry Guards Defence - 10 Levels Cavalry Guards Health - 10 Levels Cavalry Training Efficiency - 10 Levels Fast Cavalry Training II - 10 Levels Cavalry Rations I - 5 Levels Cavalry Siege Attack - 10 Levels Cavalry Siege Defence - 10 Levels Cavalry Siege Health - 10 Levels Cavalry Attack - 10 Levels Cavalry Defence - 10 Levels Cavalry Health - 10 Levels Cavalry vs Fighter - 10 Levels Ultimate Cavalry - 1 Level March Queue I Skilled Scavenger - 5 Levels Load Capacity - 5 Levels Fast Pace - 1 Level Melee Defence - 5 Levels Sharpshooter Defence - 5 Levels Cavalry Defence - 5 Levels Team of Three - 1 Level Horse Power - 5 Levels Patch Up - 5 Levels Close Retreat - 1 Level Melee Attack - 10 Levels Sharpshooter Attack - 10 Levels Cavalry Attack - 10 Levels Fighter Endurance - 10 Levels March Queue III Skilled Scavenger - 5 Levels Load Capacity - 5 Levels Fast Pace - 1 Level Melee Defence - 5 Levels Sharpshooter Defence - 5 Levels Cavalry Defence - 5 Levels Team of Three - 1 Level Horse Power - 5 Levels Patch Up - 5 Levels Close Retreat - 1 Level Melee Attack - 10 Levels Sharpshooter Attack - 10 Levels Cavalry Attack - 10 Levels Fighter Endurance - 10 Levels March Queue III Skilled Scavenger - 5 Levels Load Capacity - 5 Levels Fast Pace - 1 Level Melee Defence - 5 Levels Sharpshooter Defence - 5 Levels Cavalry Defence - 5 Levels Team of Three - 1 Level Horse Power - 5 Levels Patch Up - 5 Levels Close Retreat - 1 Level Melee Attack - 10 Levels Sharpshooter Attack - 10 Levels Cavalry Attack - 10 Levels Fighter Endurance - 10 Levels March Queue IV Skilled Scavenger - 5 Levels Load Capacity - 5 Levels Fast Pace - 1 Level Melee Defence - 5 Levels Sharpshooter Defence - 5 Levels Cavalry Defence - 5 Levels Team of Three - 1 Level Horse Power - 5 Levels Patch Up - 5 Levels Close Retreat - 1 Level Melee Attack - 10 Levels Sharpshooter Attack - 10 Levels Cavalry Attack - 10 Levels Fighter Endurance - 10 Levels Statues Melee Statue Knockout - 20 Levels Attack Increase (When Attacking) Block - 20 Levels Defence Increase (When Attacking) Top Shape - 20 Levels Health Increase (When Attacking) Preemptive Strike - 20 Levels Attack Increase (When Defending) Dodge - 20 Levels Defence Increase (When Defending) Unyielding - 20 Levels Health Increase (When Defending) Shooter Crackdown - 20 Levels Increase Performance vs Sharpshooters Sharpshooter Statue Hail of Bullets - 20 Levels Attack Increase (When Attacking) Stance - 20 Levels Defence Increase (When Attacking) Focus - 20 Levels Health Increase (When Attacking) Parry - 20 Levels Attack Increase (When Defending) Rigor - 20 Levels Defence Increase (When Defending) Concentration - 20 Levels Health Increase (When Defending) Cavalry Crackdown - 20 Levels Increase Performance vs Cavalry Cavalry Statue Forward Charge - 20 Levels Attack Increase (When Attacking) Backward Kick - 20 Levels Defence Increase (When Attacking) Energetic - 20 Levels Health Increase (When Attacking) Preemptive Blow - 20 Levels Attack Increase (When Defending) Stagger - 20 Levels Defence Increase (When Defending) Endurance - 20 Levels Health Increase (When Defending) Melee Crackdown - 20 Levels Increase Performance vs Melee