[Spaceships] Reactionless Drives, Pseudovelocity, and NOT breaking a setting (much)

[johndallman]

Originally Posted by vicky_molokh

What other things need to be done and adjusted in order to make it a reasonably playable technology that doesn't break settings?

Pesudovelocity drives usually seem to work by means of rapid short-distance teleports. You need to consider what the movement speed is during the teleport, the maximum rate of the teleports and their maximum distance. These considered together will give you a limiting speed for the drive.