Codes for games :P?(title too short)

So I wanna have a code in a game, just a random game, random code. The code was 'C982'

If say, I wanted to be able to use that code in another game that I made. So if you reedeem the code you get something.

Could anyone please help? Thanks :D

Sorry the comment thingy do not show up!

Maybe using trello! But this is not a request site soo you have to code a bit self. Then you can come here again if you need any help or you are stuck on something!

Then i will gladly edit my answer to a solution for you!