Here are different ideas the GM (game master) could use for a session of Darktime:
Mafia Game: In this the players are members of the mafia trying to assassinate the leader of Hinosi. Michael Carn and Kabby Killers are the main enemies in this game.
Oak member game: In this game the players are in Oak, and they have to hack into CNL, maybe for some special files the GM could make up.
House hunters: In this the GM could make a game in which the players are looking for a home. In this game, they could get up to anything: meet new people, join organisations, make gangs, find food and a way of making money. They are practically living in this imaginary world.
Michael Carn-Wanted dead or alive: In this game the idea would be to find Michael Carn, and if yer hard enough, kill him aswell.
These are just basic ideas. It's up to the GM to build up more ideas around them, and only use these as a basis. The GM could make some new gangs or companies. he could even make another city or anything he wants to.