Customizing immersive media content with embedded discoverable elements

A social media platform stores immersive videos and embedded affordances for each immersive video. Each embedded affordance has a temporal location, a spatial location, and a corresponding reward. A viewer selects and plays a first immersive video. While playing the first stored immersive video, the viewer navigates to different spatial portions of the first immersive video using a spatial visibility window. The viewer activates a first embedded affordance of the first immersive video according to the spatial and temporal location of the first embedded affordance. In response, the platform initiates the reward corresponding to the first embedded affordance. The reward includes a reward token deposited into an account corresponding to the viewer. The viewer later uses a redemption user interface to redeem a plurality of reward tokens from the account (including the deposited reward token) for a single aggregated reward.