What system specifications would a game need if it was:

Total players per planet: ~20000

Total players per team:~1M

Total players per map(small volume of space or small surface over a planet): ~2000

Total players: ~10M(world has more players than this amount i think)

• Two of the players are commanders of opposite quadrants(from HUD of a strategy game).
• Lots of players use space-crafts as a captain(like 3d fps and rts).
• Many many players control consoles in those space-crafts as under command of captains.(fps )
• Some players are still in stone-age trying to reinvent wheel in some planet.
• Players design and construct any vehicles they have.
• With good physics engine
• Has puzzles inside.
• Everyone get experience by doing stuff(RPG).
• Commerce, income or totally different resource-based group(like starcraft)
• Player classes(primitive: cunning and strong, wrapped: healthy, wealthy)
• Arcade top-down style firing with ships when people get bored
• very low chance of miraculous things.(mediclorians, wormholes, bugs)
• Different game-modes: persistent(living world), resetted periodically(a new chance for noobs), instant(pre-built space + hack&slash)

I suspect this would need 128GB ram and 2048 cores.