• GameJolt
  
  •  Starting a portfolio of  you and/or your company.
  • Selling your game with no charge
  • Game Jams
  • Comunity features (forums)
  
  

• Itch.io
  
  • GameJams (Game Jolt also have game jams, but sadly itch.io has a more defined list of Game Jams)
  • Selling your game with no charge( but  you can let the person pick the amount)
  • Community features ( forums )
  
  

• IndieDB 
  
  • Selling your game(no  charge)
  • Community features (IndieDB has the most features. Blogs, giveaways, polls, and forums).
  • Giveaways
  
  

Bonus Site:

• Green man gaming
  
  • They have  this feature that was launched in 2014 called Green man Gaming Publishing. They will help publish your game to market.
  
  

 These storefronts, they will help you gain more popularity among your consumers/fans and pretty much give you all the time in the world to think and expand more on what you want to add to your game. Do you have any other ways of helping up and coming indie developers? please comment on it.

Until next time thank you for reading.