Consider this interest check a vitality test.

We have entered the heat death.  

All you have left are black holes and dying stars for civilization.

The stellar era is the deep past, the eons of time unimaginable.  The universe from your perspective is a deeply ancient place, being such a vast span of time since it is claimed to have begun in the annals of ancient mythologies of the era of stars.

There was at one point, a small group of galaxies which spanned civilizations which spanned entire galactic clusters.  We do not know or ever will know, which galaxies those were.

And it isn't relevant.

For we exist in the era of degeneracy.

We are minds vast in scale- yet helpless in ability.

We try to die.  Our systems do not let us.

Our dreams consist of endless simulations, of endless loops.  It does not end.

Perpetual termination, that is what the secret desire is.

The ultimate goal of this final game is not to win- it is to lose faster than the enemy.

The enemy of whom, shall live forever.

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This NRP is rather different from your typical space opera NRP.

There are no councils.  There are no aliens- such dichotomy has no bearing in a world where biological minds as we know them are long gone.  We have launched far, far into the deep future here.  Stellar Era ideas of civilization no longer apply.

As the end game is not to survive.

It is to die before your enemies.  

What you are in particular, it is hard to say.  This is an RP which rather blurs the NRP/Character RP lines.  One could view it as a god RP with what you control.

You can manifest yourself as a character, as a civilization or basically anything.  All conventional notions of time aren't important, the universe doesn't change much at all on small timescales like centuries or millennia.  A billion years may see some interesting stuff happen, but a billion years at this point is but a day for you.

Your goal is death- but you are immortal.  Your sub systems work tirelessly to keep you alive.  Your backups keep you alive.  Your automated parts work to harvest more in order to continue your existence.  Your goal is to circumvent them to die.

Or maybe be delusional enough to try to cause a quantum reset earlier than the absurd amounts of time that one is expected to happen. Destroying physics as we know it is a form of suicide after all.

Whatever tech you want, you can have.  It doesn't matter since any tech you grant yourself will work against your goal.

Now, you could be something other than a suicide empire, but the bulk of people here should be suicide empires.  Suicide empires in general will automatically attempt to attack and harvest the materials of other players in orbit of the decaying cluster of white dwarfs, brown dwarves, black dwarves and black holes that have not drifted into the eternal abyss from dark matter.  We are so far into the future red dwarves have died out.  Why, the red dwarf clusters some civilizations made in the late Stelliferous Era are pretty much the only reason you survive today, but even those now have burned out.  

Being anything else would go against the aesthetic, you can be something else if it fits into the reality you exist in the heat death of the universe.  

As to how you play a game where you just want death as an immortal god being, all you really have to do is not think of natural time.  Don't think in centuries or millennia, that is like thinking in terms of seconds.  A million years to get around is no issue here, a million years is probably how long a post here is.  Why, it probably is more akin to a billion years.

That being said, as to your goal of death, remember you cannot let yourself die last.  If you are the only one alive, your sub-systems will have nothing stopping them from finding a way to keep you alive until the last blackholes dissipate and even than you got some vacuum energy tapping to do.  So, you will need to find ways to keep other players alive so their sub systems may kill you.  You may even need to uplift players who play cheeky and just give themselves less advanced tech to die more easily.  

I may keep this as an NRP or make it a more formal game instead.  Depends on how interest here for the premise goes.  If this is too early in the universe, we can move to full on black hole era if desired.