Three common objectives in marketing

when it comes to digital marketing there are many different objectives you as a developer can choose - you can choose to make up some if you would like to achieve specific results.

some examples of these are:

1. Growth of target audience
2. Brand awareness
3. Returning customers

growth of target audience.
when making a game you have a specific group in mind of who would play the game, this can be made of lots of different parts - like age range, male or female audiences, type of player (bartel test), players who enjoy x genre etc.
if you want to see this sort of audience grow then that should be one of your objectives - you may even influence those who inspire you.

brand awareness
when making a game you could be in a "triple A" company (large amount of people) or you could be in a "indie" group(could be just you or a group of friends). weather you are "indie" or "triple A" you may have players who like your work so may follow you as a creator or your company looking for what you make.
brand awareness is about making others aware you or your group have the skills to make something - this could be used if you wanted a job in a bigger group or you wanted to simply let others see your skills in action (often used in portfolio work)
if this is the sort of thing you think is important then add it to your objectives list.

returning customers
if you make games and  it interests someone, they may come back or check in time to time to see what You have been up to. These people are referred to as returning customers - they can be your core audience and grow a community around the games you make.
In marketing this can be really useful for advertising upcoming projects or generating hype (which can increase sales) or increase brand awareness.
this can be a great way to include others who don't know about the games you make, discuss topics more in-depth or do public testing (like finding problems you didn't see during earlier development). some returning customers may give insight into how the game is perceived or where certain points in the game lose interest - this can be very helpful data for later development.