Here the basic plan
1) Limit the maximum speed of ships to 8 units/turn.
2) Make your planets with instant transport (I mean stargates did not just disappear with hyperdrive). Basically you can send your ships from one colony to another instantly.
3) Make sure ppl can put a max of 2 engines on their ship.
4) Make life support essential (like 1 basic support for 2 squares !!!). Currently it is useless.
I mean the average distanse between stars is no more then one sector, thus i dont really see a justification for ships to been able to cross the half the map.
This system will make the game movements like in Civ 4. (Which i should say is very well balanced from movement perspective). Also in this case the AI will see that you prepare attacking him and would be able to mount an effecient defense.
Other things which can be used:
- Transport must way a full turn on orbit around the planet.
- Once a ship moves from one planet to another via stargate, it looses all its movement points (this could also be used to limit the nb of ships which are able to transport to a single planet.)
- Use the stargate ability to been able to transport pop from one planet to another. (to fill up transports, or to fix your economic strategy).
- Make the user pay for each square a ship moves.