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At the end of time

Attention: this mod early in-dev. It is more like a concept-mod, there is not much content in it.

About: This mod adds a new pseudo-stage to the game (after winning / some time in the endgame). At this stage, an additional timeline appears in the game, the years of which increase exponentially (with base 2). Also, after some time (100 thousand-million years), new systems are generated outside the main galaxy. They should represent neighboring galaxies in the first zone and groups of galaxies in the second.

Some explanations about this mod:
Main idea is "to add exponential scale for both space and time".

For space scale will be next: Galaxies > Galaxy Groups > Clusters > Superclusters (> Walls, Filaments and Voids?).
For example, our Galaxy, Milky Way included in Local Group (~54 galaxies) > Virgo Cluster (~1300-2000 galaxies) > Virgo Supercluster (~100 groups/30000 galaxies)> Laniakea Supercluster (~100000 galaxies) (> Pisces–Cetus Supercluster Complex?)

To represent this scale in the mod I choose to divide map into zones, each representing part of this scale. Closer to the center each system represent galaxy (or few). Further from center each systems represent many galaxies.
More detailed description:
1 zone.
3 galaxies, 5 systems per galaxy;
4 galaxies, 3 systems per galaxy;
23 galaxies, 1 systems per galaxy.
Total number - 30 galaxies (+1 starting). So, it's local group.
2 zone. In this zone every system represent many galaxies. Something like:
16x with size 2-10.
16x with size 15-35.
16x with size 35-65.
Average size 27, total number of galaxies ~1300. So, zone 2 is local cluster.
Similarly, zone 3 represent a galaxy cluster per system:
16x with size 100-400.
16x with size 500-2000.
16x with size 2500-7500.
Total number of galaxies ~100000. So, zone 3 is local supercluster.
(I will stop here, but according to wikipedia: "There are at least 2 trillion galaxies in the observable universe", 7 orders of magnitude more!)

For exponential time scale I'm using special variable, that represent years on time scale.
At first year speed multiplier rising each two month following this sequence: 1, 2, 3, 6, 12, 24. Or +7 years at the end of in-game year.
Each next year speed doubles on first month. 48 years per/year, 96, 192 and so on.
At the end of first decade the exponential time will reach year 24536. In the same way:
20 years in-game => 25 million years
30 years in-game => 25 billion years
40 years in-game => 26 trillion years
50 years in-game => 27 quadrillion years
Each decade have different activity. For example: 1-10 is adaptation for new stage; 11-20 intergalactic explore and colonization; 21-30 preparing for dark age; 31+ trying to survive.

Obviously, for now mod far from completion. I think, it's easier to add something like story-mod first (it's easier to write text events than other types of content).