My friend and I, both novice quantum physicists and builders, have decided to build the first "light speed warp" ship in starmade. I crunched the numbers and found that the relative speed of light in starmade (given that yes it is a game so the physics aren't quite the same) is ~10500kmh.
In the real world the calculation to reach the speed of light (WARNING-science ahead. If this stuff goes way over your head, just skip to the third paragraph) is c / 1.5 ≈ 200,000 km/s, whereas "c" equals the actual speed of light. This formula would imply that to reach the speed of light would require more and more energy approaching infinity exponentialy until you hit the speed of light. Also in the real world an event called "time dialation" occurs as you approach the speed of light which results from you becoming a singularity whilst 99.99999etc.% of the speed of light. Essentially this all means that in a linear environment with exponentialy diminishing energy returns, where your mass essentially increases faster than the ammount of energy you can produce in a pheasible, unaltered plane of existence, with no catylyst for reaction, nor some physics altering futuristic device to warp space, it is very impossible to reach or break the speed of light.
However, starmade is not the real world nor is there an un-overcomeable linear law of diminishing returns. In starmade, there is also no time dialation meaning that with sustainable power, it is pheasibly possible to achive the speed of light. While this would only be for a few brief moments, it would still be long enough to carry you hundreds of sectors. In my scholarly opinion, it is possible in starmade to build a ship capable of achieving the speed of light. And for all intents and purposes, with enough time and resources, you could essentially hit c2 (twice the speed of light), although this may be an impossible feat (atleast for now, :)).
So far, we have built a ship capable of sustainable flight up to 3500-4000kmh, which is 35%of our inevitable goal. We are experimenting with more and more effecient engine designs and slowly making our way to 10K. If anyone has advice, or has actually built a ship capable of reaching sustainable flight at 10,500kmh, please tell us, as it is much appreciated. Thank you!
Megaave and Blaze.