JOINING GAMEPLAY OF A GAME THROUGH VIDEO CONTENT

1. A system configured to facilitate players joining an ongoing online game, the system comprising: one or more physical processors configured by machine-readable instructions to: obtain game session information, the game session information including (i) video information that defines video content, and (ii) a pointer, the video content depicting gameplay of a first user participating in a game session of the game, the first user participation including gameplay in a first game activity in the game session, the pointer being associated with a game state and a user state of the game session such that the pointer facilitates a second user to join the game session of the game for contemporaneous, interactive play with the first user; effectuate presentation of the video content on a display of a computing platform associated with the second user; and effectuate presentation of the pointer concurrently with the video content presented on the display of the computing platform, the pointer being presented within the video content such that the second user associated with the computing platform is enabled to select the pointer to join the game session for the contemporaneous, interactive play with the first user, wherein the second user joining the game session for the contemporaneous, interactive play with the first user comprises the second user cooperatively participating in the first game activity of the game session with the first user. 2. The system of claim 1, wherein the video content depicting gameplay of the first user participating in the game session of the game includes a depiction of one or more virtual objects positioned within the topography of a simulated physical space of the game in accordance with the game session, and the first user participating in the game session using a first game entity controlled by the first user. 3. The system of claim 1, wherein joining the same game session includes joining a game server hosting the game session with the first user. 4. The system of claim 1, wherein the game state defines one or more of a set of game criteria for completing the game session, one or more game criteria satisfied, one or more game behaviors, a game appearance, and/or a game progress; and the user state defines one or more of a user account, a user game status, and/or a user location. 5. The system of claim 1, wherein the pointer presented in the video content includes a depiction of a graphical user interface including one or more of a hyperlink and/or a widget that facilitates the execution of an instance of the game on the computing platform. 6. The system of claim 1, wherein the video content is a real-time or near real-time recording of the game session played by the first user, and the pointer is associated with the real-time or near real-time recording of the game session. 7. The system of claim 1, wherein the pointer has a set of pointer criteria for determining when the pointer is presented concurrently with the video content, wherein the pointer is presented concurrently with the video content responsive to the set of pointer criteria being satisfied. 8. The system of claim 7, wherein the set of pointer criteria includes criteria requiring one or more of a paid or non-paid membership and/or subscription, a registered account, a payment of a fee to make a purchase of an item, viewing the video content for a duration of time, watching an advertisement, completing a survey, making a comment in a chat box, a minimum experience level of the first user entity and/or the second user entity, a minimum level of progress of the first user entity and/or the second user entity, a maximum level of experience of the first user entity and/or the second user entity, and/or a maximum level of progress of the first user entity and/or the second user entity. 9. The system of claim 1, wherein the pointer is presented concurrently with the video content and includes an offer for the second user to join the game session of the game for the contemporaneous, interactive play with the first user, and in response to the second user accepting the offer, the computing platform executes an instance of the game using the game state and the user state. 10. The system of claim 9, wherein the one or more physical processors are further configured by the machine-readable instructions to responsive to the second user accepting the offer, obtain approval from the first user for the second user to join the game session of the game for the contemporaneous, interactive play with the first user prior to enabling the computing platform to execute the instance of the game. 11. A method configured to facilitate players joining an ongoing, online game, the method comprising: obtaining game session information, the game session information including (i) video information that defines video content, and (ii) a pointer, the video content depicting gameplay of a first user participating in a game session of the game, the first user participation including gameplay in a first game activity in the game session, the pointer being associated with a game state and a user state of the game session such that the pointer facilitates a second user to join the game session of the game for contemporaneous, interactive play with the first user; effectuating presentation of the video content on a display of a computing platform associated with the second user; and effectuating presentation of the pointer concurrently with the video content presented on the display of the computing platform, the pointer being presented within the video content such that the second user associated with the computing platform is enabled to select the pointer to join the game session for the contemporaneous, interactive play with the first user, wherein the second user joining the game session for the contemporaneous, interactive play with the first user comprises the second user cooperatively participating in the first game activity of the game session with the first use. 12. The method of claim 11, wherein the video content depicting gameplay of the first user participating in game session of the game includes a depiction of one or more virtual objects positioned within the topography of a simulated physical space of the game in accordance with the game session, and the first user participating in the game session using a first game entity controlled by the first user. 13. The method of claim 11, wherein joining the same game session includes joining a game server hosting the game session with the first user. 14. The method of claim 11, wherein the game state defines one or more of a set of game criteria for completing the game session, one or more game criteria satisfied, one or more game behaviors, a game appearance, and/or a game progress; and the user state defines one or more of a user account, a user game status, and/or a user location. 15. The method of claim 11, wherein the pointer presented in the video content includes a depiction of a graphical user interface including one or more of a hyperlink and/or widget that facilitates the execution of an instance of the game on the computing platform. 16. The method of claim 11, wherein the video content is a real-time or near real-time recording of the game session played by the first user, and the pointer is associated with the real-time or near real-time recording of the game session. 17. The method of claim 11, wherein the pointer has a set of pointer criteria for determining when the pointer is presented concurrently with the video content, wherein the pointer is presented concurrently with the video content responsive to the set of pointer criteria being satisfied. 18. The method of claim 17, wherein the set of pointer criteria includes criteria requiring one or more of a paid or non-paid membership and/or subscription, a registered account, a payment of a fee to make a purchase of an item, viewing the video content for a duration of time, watching an advertisement, completing a survey, making a comment in a chat box, a minimum experience level of the first user entity and/or the second user entity, a minimum level of progress of the first user entity and/or the second user entity, a maximum level of experience of the first user entity and/or the second user entity, and/or a maximum level of progress of the first user entity and/or the second user entity. 19. The method of claim 11, wherein the pointer is presented concurrently with the video content and includes an offer for the second user to join the game session of the game for the contemporaneous, interactive play with the first user, and in response to the second user accepting the offer, the computing platform executes an instance of the game using the game state and the user state. 20. The method of claim 19, wherein responsive to the second user accepting the offer, obtain approval from the first user for the second user to join the game session of the game for the contemporaneous, interactive play with the first user prior to enabling the computing platform to execute the instance of the game.