There are 3 games. That makes 7 combinations.
Removing the three single game options, that leaves:
O.L.D./N.O.W.
O.L.D./N.E.W.
N.O.W./N.E.W.
O.L.D./N.O.W./N.E.W.
What would you like to do with them? For example:
N.E.W./O.L.D. -- I'd like to write a Dragonstar-like setting. Orcs flying spaceships. Wizards in space.
Removing the three single game options, that leaves:
O.L.D./N.O.W.
O.L.D./N.E.W.
N.O.W./N.E.W.
O.L.D./N.O.W./N.E.W.
What would you like to do with them? For example:
N.E.W./O.L.D. -- I'd like to write a Dragonstar-like setting. Orcs flying spaceships. Wizards in space.