How to add/edit missed game?

We rely on IGDB.com for some game-related data. So you can visit this site to make appropriate changes or add a game.
After some time, this information will be available in the Stash app.

You can also follow the following instructions:
1) Open the game you want to edit in the Stash app.
2) Click on the 'Contribute' button.
3) Click on the 'Edit information' button.
4) You will be taken to the IGDB.com website, where you can make these changes.

Also, to add a new game, you can go to the IGDB.com and select the appropriate section in the menu.

After some time, all new information appears in Stash application.

Thank you for your help in updating the data.