Cool concept, but without a working prototype I'm not buying any. Too much like No Man's Sky, and we know how that went
What kind of prototype are you looking for? There is
this prototype deployed on the Ethereum chain right now, and it works.
Here's a listing of the stars in the (0,0,0) sector, from the test suite:
Stars in origin sector: 39
Star 0 at 0.1613819681097084,18.118419187521795,12.41629295113853 ly is a MainSequence TypeM of 0.13280483893322526 solar masses with planets
Star 1 at 8.352765291169817,21.521832496023308,14.70794403992386 ly is a WhiteDwarf NotApplicable of 0.7937905001253966 solar masses
Star 2 at 23.628362261683833,9.4487003893164,12.631785201278944 ly is a MainSequence TypeF of 1.2172339029093564 solar masses
Star 3 at 17.68796647581894,10.921977819566564,6.6272957395312915 ly is a MainSequence TypeM of 0.09394641004018922 solar masses with planets
Star 4 at 16.616928126040875,16.187588339312242,7.377445674637784 ly is a MainSequence TypeG of 0.9865067396913219 solar masses with planets
Star 5 at 15.74362464036767,6.600803068454297,5.968998394905611 ly is a MainSequence TypeM of 0.26636417300778703 solar masses with planets
Star 6 at 20.268543146312368,14.805240031569156,1.4016471760442073 ly is a MainSequence TypeM of 0.21663218672347284 solar masses with planets
Star 7 at 14.131425873461012,0.8248838812733084,3.87367203904887 ly is a MainSequence TypeM of 0.18189346254075645 solar masses with planets
Star 8 at 4.610691752213825,0.0428331247803726,2.050549116984257 ly is a MainSequence TypeM of 0.181107219693331 solar masses with planets
Star 9 at 21.586779849758386,11.544582400892978,6.165219546960543 ly is a MainSequence TypeM of 0.28534585097804666 solar masses with planets
Star 10 at 13.852605343299729,10.204806822025603,15.587450106386314 ly is a Giant TypeK of 48.90808705718882 solar masses
Star 11 at 13.788190521222532,11.125623866701062,13.996714425388745 ly is a MainSequence TypeM of 0.10444396197726746 solar masses
Star 12 at 21.489885124219654,24.826315800282828,20.456860429499102 ly is a MainSequence TypeM of 0.1178465775492441 solar masses with planets
Star 13 at 4.173886921512349,15.812307129067449,3.7542753055731737 ly is a MainSequence TypeK of 0.7818698770197443 solar masses with planets
Star 14 at 13.27533083747312,16.966044178025186,20.48390676800409 ly is a MainSequence TypeM of 0.2437850927153704 solar masses
Star 15 at 8.736244370561508,1.0378403535241887,9.831296771335474 ly is a MainSequence TypeG of 1.0004645705039366 solar masses with planets
Star 16 at 16.115172616264317,10.567678005190828,10.027809768303086 ly is a MainSequence TypeM of 0.18262802364279196 solar masses with planets
Star 17 at 11.294209219568074,4.3196126885050035,21.229172114317407 ly is a MainSequence TypeM of 0.40833418943748256 solar masses with planets
Star 18 at 5.21207560827861,11.492471201813714,10.38719548073459 ly is a MainSequence TypeM of 0.2684721985224314 solar masses with planets
Star 19 at 18.553889885993158,0.45091477743426367,20.74156241453693 ly is a MainSequence TypeM of 0.4140062171327372 solar masses with planets
Star 20 at 20.23379753577501,17.341250630147442,23.527256473835223 ly is a MainSequence TypeM of 0.26013500826411473 solar masses with planets
Star 21 at 12.66052347978075,8.060563405160792,9.884962858495783 ly is a MainSequence TypeM of 0.2598429443214627 solar masses with planets
Star 22 at 17.307068168952355,20.73634026628497,2.954285925170552 ly is a MainSequence TypeM of 0.27194352844162495 solar masses
Star 23 at 6.862001460854117,20.34844719587454,17.04913473281522 ly is a MainSequence TypeM of 0.33822736503407214 solar masses with planets
Star 24 at 23.699176378659104,14.75463548067637,16.861710910188776 ly is a MainSequence TypeM of 0.21391858288279764 solar masses with planets
Star 25 at 11.07977198385015,4.693625674917712,12.777176997678907 ly is a MainSequence TypeM of 0.4201501412098878 solar masses with planets
Star 26 at 7.363040540849397,10.01761340748999,23.565806943042844 ly is a MainSequence TypeM of 0.3293303501450282 solar masses with planets
Star 27 at 12.371446089809979,8.087426029533162,4.251143996225437 ly is a MainSequence TypeM of 0.11277296043499518 solar masses with planets
Star 28 at 3.1524554843599617,24.93803733898403,10.563421923507121 ly is a MainSequence TypeM of 0.09525545870928909 solar masses with planets
Star 29 at 18.922999667984186,4.089151687594494,21.297638903865845 ly is a MainSequence TypeM of 0.4318041607057239 solar masses with planets
Star 30 at 5.617614002699156,9.960647307684667,22.83705705324337 ly is a MainSequence TypeM of 0.3462359881841621 solar masses
Star 31 at 8.866873133320041,21.352436725965163,9.70895904245026 ly is a MainSequence TypeK of 0.4651559596059087 solar masses with planets
Star 32 at 17.616013039014433,22.401921771574962,24.705373676601994 ly is a MainSequence TypeM of 0.10785482486699038 solar masses with planets
Star 33 at 23.072090780783583,8.107381122158586,0.6762747884749842 ly is a MainSequence TypeM of 0.34945126173624885 solar masses with planets
Star 34 at 16.74501128911743,20.138443240966808,16.374172900964368 ly is a MainSequence TypeM of 0.25525278968689236 solar masses with planets
Star 35 at 12.373427700413231,1.8376803255023333,18.080980920171896 ly is a MainSequence TypeM of 0.44613618154562573 solar masses with planets
Star 36 at 22.86719418109442,18.51714929296122,11.419720619846885 ly is a MainSequence TypeM of 0.4148228889407619 solar masses
Star 37 at 11.30238699226993,12.042864324212132,8.762299942554819 ly is a MainSequence TypeM of 0.20170117294674128 solar masses
Star 38 at 19.951106185339995,14.261220537559893,10.751655614421907 ly is a MainSequence TypeM of 0.3570075996558444 solar masses with planets
There's a nice G-type star (number 4) that might eventually have some habitable planets, and a relatively rare giant K-type star, and a white dwarf. There's all sorts of gameplay possibilities there; even something as simple as a
Noctis clone, where you fly around refueling at white dwarfs, would be pretty fun.
Reading console dumps is not a particularly slick way to explore the universe, so I'm planning to develop a nice front end to let people explore the generated world in a web3-enabled browser, to hopefully be completed before the crowdsale is over. Is that the sort of prototype you're looking for?