"The salmon run is the time when salmon, which have migrated from the ocean, swim to the upper reaches of rivers where they spawn on gravel beds. [...] It is thought that, when they are in the ocean, they use magnetoception to locate the general position of their natal river, and once close to the river, that they use their sense of smell to home in on the river entrance and even their natal spawning ground." Wikipedia. You're the Salmon on your way home. The journey is long and dangerous. This was mainly a learning project to learn about Project Tiny (Unity) and ECS.
Used Project Tiny (version currently in preview mode) and ECS