Tech levels should run something like this (thought this isn't set is stone yet)
Tech Level 4: Information Age (Modern Day)
Early spaceflight. Mostly projectile weapons and missiles. Some early energy weapons. (current era IRL)
Tech Level 5: Fusion Age (Firefly, 2010)
In-system spaceflight. Can use Jumpgates but no Jump Engines and cannot build Gates. Early energy weapons. Fusion power, early AI, etc. (near future and just beyond tech)
Tech Level 6: Interstellar Age (Bab5 EA, Nexus. Battletech)
Jump Engines, Jumpgates, small fusion plants, Mecha, good energy weapons. Energy hand weapons. (recommended player race tech)
Tech Level 7: The Imperial Age (Bab5 Centauri, Star Wars, ST: Enterprise)
Artificial Gravity, advanced jump engines, early gravitics (repulsorlift, etc). Advanced mecha, excellent starships.
Tech Level 8: The Gilded Age (ST:TNG)
Highly advanced technology, trivial fusion power, advanced weapons and drives, huge ships, artificial colonies, etc. (not really recommended for player races) Matter Transportation.
Tech Level 9: The Gravetic Age
These highly advanced races are capable of feats more primitive races can barely detect or understand. Gravetic drives, trivial matter transportation, etc. (not recommended for player races)
Tech Level 10: Demigod Age
Races who have reached Tech Level 10 are hugely advanced. Living ships, godlike weapons, etc. (not recommended for player races)
- "Don't assume you are safe because there is a rational explanation for all of this."