A game system in which game sessions involving player(s) may be recorded and saved as game records. A player or other entity may offer or market the game records to other players via one or more channels such as websites. The game records may be offered in exchange for virtual or real currency, or for free. Player profiles for the player(s) that recorded the original game session may be provided with the game records. A player that obtains a game record may replay the recorded game session to watch the game play, or alternatively may choose to participate in the replay by assuming control of a character in the game to play with the original player's character as simulated according to the player's profile. If a player steps into a game session being replayed, a new universe/timeline may be spawned and saved as a new game record.